29927831139 has 12 divisors (see below), whose sum is σ = 44234417656. Its totient is φ = 19487889792.

The previous prime is 29927831111. The next prime is 29927831147. The reversal of 29927831139 is 93113872992.

29927831139 is a `hidden beast` number, since 29 + 9 + 278 + 311 + 39 = 666.

It is not a de Polignac number, because 29927831139 - 2¹⁷ = 29927700067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29927835139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38666062 + ... + 38666835.

Almost surely, 2^29927831139 is an apocalyptic number.

29927831139 is a deficient number, since it is larger than the sum of its proper divisors (14306586517).

29927831139 is a wasteful number, since it uses less digits than its factorization.

29927831139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77332946 (or 77332943 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The spelling of 29927831139 in words is "twenty-nine billion, nine hundred twenty-seven million, eight hundred thirty-one thousand, one hundred thirty-nine".