29640925136 has 40 divisors (see below), whose sum is σ = 58671185280. Its totient is φ = 14503297536.

The previous prime is 29640925117. The next prime is 29640925141. The reversal of 29640925136 is 63152904692.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39071 + ... + 246593.

It is an arithmetic number, because the mean of its divisors is an integer number (1466779632).

Almost surely, 2^29640925136 is an apocalyptic number.

It is an amenable number.

29640925136 is a deficient number, since it is larger than the sum of its proper divisors (29030260144).

29640925136 is a wasteful number, since it uses less digits than its factorization.

29640925136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207723 (or 207717 counting only the distinct ones).

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

The spelling of 29640925136 in words is "twenty-nine billion, six hundred forty million, nine hundred twenty-five thousand, one hundred thirty-six".