29921568992 has 48 divisors (see below), whose sum is σ = 67371558912. Its totient is φ = 12814381440.

The previous prime is 29921568991. The next prime is 29921569003. The reversal of 29921568992 is 29986512992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29921568991) 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, 271817 + ... + 365687.

It is an arithmetic number, because the mean of its divisors is an integer number (1403574144).

Almost surely, 2^29921568992 is an apocalyptic number.

It is an amenable number.

29921568992 is an abundant number, since it is smaller than the sum of its proper divisors (37449989920).

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

29921568992 is a wasteful number, since it uses less digits than its factorization.

29921568992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95311 (or 95303 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 62.

The spelling of 29921568992 in words is "twenty-nine billion, nine hundred twenty-one million, five hundred sixty-eight thousand, nine hundred ninety-two".