769555223145 has 48 divisors (see below), whose sum is σ = 1393554661200. Its totient is φ = 392353113600.

The previous prime is 769555223141. The next prime is 769555223179. The reversal of 769555223145 is 541322555967.

769555223145 is a `hidden beast` number, since 7 + 69 + 5 + 552 + 23 + 1 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 91066943529 + 678488279616 = 301773^2 + 823704^2 .

It is not a de Polignac number, because 769555223145 - 2² = 769555223141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 769555223091 and 769555223100.

It is not an unprimeable number, because it can be changed into a prime (769555223141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2787490 + ... + 3051099.

It is an arithmetic number, because the mean of its divisors is an integer number (29032388775).

Almost surely, 2^769555223145 is an apocalyptic number.

It is an amenable number.

769555223145 is a deficient number, since it is larger than the sum of its proper divisors (623999438055).

769555223145 is a wasteful number, since it uses less digits than its factorization.

769555223145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838730 (or 5838727 counting only the distinct ones).

The product of its digits is 11340000, while the sum is 54.

The spelling of 769555223145 in words is "seven hundred sixty-nine billion, five hundred fifty-five million, two hundred twenty-three thousand, one hundred forty-five".