29719874820 has 48 divisors (see below), whose sum is σ = 85464727488. Its totient is φ = 7711102080.

The previous prime is 29719874791. The next prime is 29719874831. The reversal of 29719874820 is 2847891792.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6691446 + ... + 6695885.

It is an arithmetic number, because the mean of its divisors is an integer number (1780515156).

Almost surely, 2^29719874820 is an apocalyptic number.

29719874820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29719874820 is an abundant number, since it is smaller than the sum of its proper divisors (55744852668).

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

29719874820 is a wasteful number, since it uses less digits than its factorization.

29719874820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13387380 (or 13387378 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 29719874820 in words is "twenty-nine billion, seven hundred nineteen million, eight hundred seventy-four thousand, eight hundred twenty".