13235694436 has 24 divisors (see below), whose sum is σ = 23713200000. Its totient is φ = 6462000864.

The previous prime is 13235694431. The next prime is 13235694457. The reversal of 13235694436 is 63449653231.

It is a super-2 number, since 2×13235694436² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13235694431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153036 + ... + 223363.

It is an arithmetic number, because the mean of its divisors is an integer number (988050000).

Almost surely, 2^13235694436 is an apocalyptic number.

It is an amenable number.

13235694436 is a deficient number, since it is larger than the sum of its proper divisors (10477505564).

13235694436 is a wasteful number, since it uses less digits than its factorization.

13235694436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376611 (or 376609 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 46.

The spelling of 13235694436 in words is "thirteen billion, two hundred thirty-five million, six hundred ninety-four thousand, four hundred thirty-six".