6923649423213 has 20 divisors (see below), whose sum is σ = 10344106551900. Its totient is φ = 4615154433792.

The previous prime is 6923649423191. The next prime is 6923649423217. The reversal of 6923649423213 is 3123249463296.

6923649423213 is a `hidden beast` number, since 6 + 9 + 236 + 49 + 42 + 321 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4488542229924 + 2435107193289 = 2118618^2 + 1560483^2 .

It is not a de Polignac number, because 6923649423213 - 2⁸ = 6923649422957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6923649423213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6923649423217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5050020 + ... + 6272957.

It is an arithmetic number, because the mean of its divisors is an integer number (517205327595).

Almost surely, 2^{6923649423213} is an apocalyptic number.

It is an amenable number.

6923649423213 is a deficient number, since it is larger than the sum of its proper divisors (3420457128687).

6923649423213 is a wasteful number, since it uses less digits than its factorization.

6923649423213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11330538 (or 11330529 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 54.

The spelling of 6923649423213 in words is "six trillion, nine hundred twenty-three billion, six hundred forty-nine million, four hundred twenty-three thousand, two hundred thirteen".