29972866408 has 64 divisors (see below), whose sum is σ = 57542745600. Its totient is φ = 14632954560.

The previous prime is 29972866387. The next prime is 29972866411. The reversal of 29972866408 is 80466827992.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48421123 + ... + 48421741.

It is an arithmetic number, because the mean of its divisors is an integer number (899105400).

Almost surely, 2^29972866408 is an apocalyptic number.

It is an amenable number.

29972866408 is a deficient number, since it is larger than the sum of its proper divisors (27569879192).

29972866408 is a wasteful number, since it uses less digits than its factorization.

29972866408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1378 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 29972866408 in words is "twenty-nine billion, nine hundred seventy-two million, eight hundred sixty-six thousand, four hundred eight".