13235972044 has 12 divisors (see below), whose sum is σ = 23316349168. Its totient is φ = 6574158000.

The previous prime is 13235972039. The next prime is 13235972059. The reversal of 13235972044 is 44027953231.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13235971988 and 13235972006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10956327 + ... + 10957534.

Almost surely, 2^13235972044 is an apocalyptic number.

It is an amenable number.

13235972044 is a deficient number, since it is larger than the sum of its proper divisors (10080377124).

13235972044 is a wasteful number, since it uses less digits than its factorization.

13235972044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21914016 (or 21914014 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 13235972044 in words is "thirteen billion, two hundred thirty-five million, nine hundred seventy-two thousand, forty-four".