29700465920 has 54 divisors (see below), whose sum is σ = 71156669262. Its totient is φ = 11877720064.

The previous prime is 29700465911. The next prime is 29700465953. The reversal of 29700465920 is 2956400792.

It can be written as a sum of positive squares in 3 ways, for example, as 724255744 + 28976210176 = 26912^2 + 170224^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6163352 + ... + 6168168.

Almost surely, 2^29700465920 is an apocalyptic number.

29700465920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29700465920 is an abundant number, since it is smaller than the sum of its proper divisors (41456203342).

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

29700465920 is an frugal number, since it uses more digits than its factorization.

29700465920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9655 (or 4824 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 29700465920 in words is "twenty-nine billion, seven hundred million, four hundred sixty-five thousand, nine hundred twenty".