18890070372530 has 16 divisors (see below), whose sum is σ = 38859573337920. Its totient is φ = 6476595556272.

The previous prime is 18890070372491. The next prime is 18890070372587. The reversal of 18890070372530 is 3527307009881.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134929074020 + ... + 134929074159.

It is an arithmetic number, because the mean of its divisors is an integer number (2428723333620).

Almost surely, 2^{18890070372530} is an apocalyptic number.

18890070372530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18890070372530 is an abundant number, since it is smaller than the sum of its proper divisors (19969502965390).

18890070372530 is a wasteful number, since it uses less digits than its factorization.

18890070372530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269858148193.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 18890070372530 in words is "eighteen trillion, eight hundred ninety billion, seventy million, three hundred seventy-two thousand, five hundred thirty".