29957821130 has 16 divisors (see below), whose sum is σ = 54003042144. Its totient is φ = 11965580880.

The previous prime is 29957821129. The next prime is 29957821133. The reversal of 29957821130 is 3112875992.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29957821133) 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, 2186276 + ... + 2199935.

It is an arithmetic number, because the mean of its divisors is an integer number (3375190134).

Almost surely, 2^29957821130 is an apocalyptic number.

29957821130 is a deficient number, since it is larger than the sum of its proper divisors (24045221014).

29957821130 is a wasteful number, since it uses less digits than its factorization.

29957821130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386901.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 29957821130 in words is "twenty-nine billion, nine hundred fifty-seven million, eight hundred twenty-one thousand, one hundred thirty".