13613494952 has 16 divisors (see below), whose sum is σ = 26215176660. Its totient is φ = 6622781184.

The previous prime is 13613494949. The next prime is 13613494967. The reversal of 13613494952 is 25949431631.

It can be written as a sum of positive squares in 2 ways, for example, as 13150126276 + 463368676 = 114674^2 + 21526^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13613494897 and 13613494906.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22995473 + ... + 22996064.

Almost surely, 2^13613494952 is an apocalyptic number.

It is an amenable number.

13613494952 is a deficient number, since it is larger than the sum of its proper divisors (12601681708).

13613494952 is a wasteful number, since it uses less digits than its factorization.

13613494952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45991580 (or 45991576 counting only the distinct ones).

The product of its digits is 699840, while the sum is 47.

The spelling of 13613494952 in words is "thirteen billion, six hundred thirteen million, four hundred ninety-four thousand, nine hundred fifty-two".