18950151957500 has 60 divisors (see below), whose sum is σ = 42321898782240. Its totient is φ = 7418782848000.

The previous prime is 18950151957479. The next prime is 18950151957509. The reversal of 18950151957500 is 575915105981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18950151957509) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 80521445 + ... + 80756444.

It is an arithmetic number, because the mean of its divisors is an integer number (705364979704).

Almost surely, 2^{18950151957500} is an apocalyptic number.

18950151957500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18950151957500 is an abundant number, since it is smaller than the sum of its proper divisors (23371746824740).

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

18950151957500 is a wasteful number, since it uses less digits than its factorization.

18950151957500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161277960 (or 161277943 counting only the distinct ones).

The product of its (nonzero) digits is 2835000, while the sum is 56.

The spelling of 18950151957500 in words is "eighteen trillion, nine hundred fifty billion, one hundred fifty-one million, nine hundred fifty-seven thousand, five hundred".