13074763221 has 24 divisors (see below), whose sum is σ = 20344536576. Its totient is φ = 8043628320.

The previous prime is 13074763213. The next prime is 13074763231. The reversal of 13074763221 is 12236747031.

13074763221 is a `hidden beast` number, since 13 + 0 + 7 + 4 + 7 + 632 + 2 + 1 = 666.

It is not a de Polignac number, because 13074763221 - 2³ = 13074763213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13074763211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432676 + ... + 461906.

It is an arithmetic number, because the mean of its divisors is an integer number (847689024).

Almost surely, 2^13074763221 is an apocalyptic number.

It is an amenable number.

13074763221 is a deficient number, since it is larger than the sum of its proper divisors (7269773355).

13074763221 is a wasteful number, since it uses less digits than its factorization.

13074763221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33073 (or 33070 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 13074763221 in words is "thirteen billion, seventy-four million, seven hundred sixty-three thousand, two hundred twenty-one".