29812739100 has 72 divisors (see below), whose sum is σ = 86296487088. Its totient is φ = 7946534400.

The previous prime is 29812739093. The next prime is 29812739113. The reversal of 29812739100 is 193721892.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 693432 + ... + 735168.

Almost surely, 2^29812739100 is an apocalyptic number.

29812739100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29812739100 is an abundant number, since it is smaller than the sum of its proper divisors (56483747988).

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

29812739100 is a wasteful number, since it uses less digits than its factorization.

29812739100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44135 (or 44128 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 29812739100 in words is "twenty-nine billion, eight hundred twelve million, seven hundred thirty-nine thousand, one hundred".