29957529768 has 48 divisors (see below), whose sum is σ = 77387747040. Its totient is φ = 9663711840.

The previous prime is 29957529751. The next prime is 29957529781. The reversal of 29957529768 is 86792575992.

It is a super-2 number, since 2×29957529768² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 626380 + ... + 672507.

It is an arithmetic number, because the mean of its divisors is an integer number (1612244730).

Almost surely, 2^29957529768 is an apocalyptic number.

It is an amenable number.

29957529768 is an abundant number, since it is smaller than the sum of its proper divisors (47430217272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29957529768 is a wasteful number, since it uses less digits than its factorization.

29957529768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298958 (or 1298923 counting only the distinct ones).

The product of its digits is 171460800, while the sum is 69.

The spelling of 29957529768 in words is "twenty-nine billion, nine hundred fifty-seven million, five hundred twenty-nine thousand, seven hundred sixty-eight".