21734158080 has 72 divisors (see below), whose sum is σ = 69413479632. Its totient is φ = 5795774464.

The previous prime is 21734158057. The next prime is 21734158087. The reversal of 21734158080 is 8085143712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21734158087) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2826129 + ... + 2833808.

It is an arithmetic number, because the mean of its divisors is an integer number (964076106).

Almost surely, 2^21734158080 is an apocalyptic number.

21734158080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21734158080 is an abundant number, since it is smaller than the sum of its proper divisors (47679321552).

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

21734158080 is an equidigital number, since it uses as much as digits as its factorization.

21734158080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5659961 (or 5659947 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 21734158080 in words is "twenty-one billion, seven hundred thirty-four million, one hundred fifty-eight thousand, eighty".