15942450972680 has 32 divisors (see below), whose sum is σ = 35870629377600. Its totient is φ = 6376959999936.

The previous prime is 15942450972659. The next prime is 15942450972689. The reversal of 15942450972680 is 8627905424951.

It is not an unprimeable number, because it can be changed into a prime (15942450972689) 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, 21680891 + ... + 22404149.

It is an arithmetic number, because the mean of its divisors is an integer number (1120957168050).

Almost surely, 2^{15942450972680} is an apocalyptic number.

15942450972680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15942450972680 is an abundant number, since it is smaller than the sum of its proper divisors (19928178404920).

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

15942450972680 is a wasteful number, since it uses less digits than its factorization.

15942450972680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274333 (or 1274329 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 15942450972680 in words is "fifteen trillion, nine hundred forty-two billion, four hundred fifty million, nine hundred seventy-two thousand, six hundred eighty".