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6919113929697 = 323720778119909
BaseRepresentation
bin110010010101111101101…
…0100111111001111100001
3220111110102221112212102200
41210223323110333033201
51401330321131222242
622414332544203413
71312614044004234
oct144537324771741
926443387485380
106919113929697
11222841a483562
12938b79309569
133b2614a66578
1419cc5b92941b
15beeae55604c
hex64afb53f3e1

6919113929697 has 12 divisors (see below), whose sum is σ = 10264391235540. Its totient is φ = 4488073900128.

The previous prime is 6919113929639. The next prime is 6919113929719. The reversal of 6919113929697 is 7969293119196.

6919113929697 is a `hidden beast` number, since 6 + 91 + 91 + 1 + 392 + 9 + 69 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3872410008336 + 3046703921361 = 1967844^2 + 1745481^2 .

It is not a de Polignac number, because 6919113929697 - 219 = 6919113405409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6919113929797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10389059622 + ... + 10389060287.

It is an arithmetic number, because the mean of its divisors is an integer number (855365936295).

Almost surely, 26919113929697 is an apocalyptic number.

It is an amenable number.

6919113929697 is a deficient number, since it is larger than the sum of its proper divisors (3345277305843).

6919113929697 is a wasteful number, since it uses less digits than its factorization.

6919113929697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20778119952 (or 20778119949 counting only the distinct ones).

The product of its digits is 89282088, while the sum is 72.

The spelling of 6919113929697 in words is "six trillion, nine hundred nineteen billion, one hundred thirteen million, nine hundred twenty-nine thousand, six hundred ninety-seven".

Divisors: 1 3 9 37 111 333 20778119909 62334359727 187003079181 768790436633 2306371309899 6919113929697