18971757414732 has 48 divisors (see below), whose sum is σ = 44568625618944. Its totient is φ = 6280995072000.

The previous prime is 18971757414719. The next prime is 18971757414733. The reversal of 18971757414732 is 23741475717981.

It is not an unprimeable number, because it can be changed into a prime (18971757414733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4987444 + ... + 7925787.

It is an arithmetic number, because the mean of its divisors is an integer number (928513033728).

Almost surely, 2^{18971757414732} is an apocalyptic number.

18971757414732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18971757414732 is an abundant number, since it is smaller than the sum of its proper divisors (25596868204212).

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

18971757414732 is a wasteful number, since it uses less digits than its factorization.

18971757414732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914070 (or 12914068 counting only the distinct ones).

The product of its digits is 82978560, while the sum is 66.

The spelling of 18971757414732 in words is "eighteen trillion, nine hundred seventy-one billion, seven hundred fifty-seven million, four hundred fourteen thousand, seven hundred thirty-two".