18856315190970 has 64 divisors (see below), whose sum is σ = 52930007568000. Its totient is φ = 4763700678528.

The previous prime is 18856315190957. The next prime is 18856315191001. The reversal of 18856315190970 is 7909151365881.

18856315190970 is a `hidden beast` number, since 1 + 8 + 85 + 6 + 31 + 519 + 0 + 9 + 7 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 18856315190898 and 18856315190907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1837842355 + ... + 1837852614.

It is an arithmetic number, because the mean of its divisors is an integer number (827031368250).

Almost surely, 2^{18856315190970} is an apocalyptic number.

18856315190970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18856315190970 is an abundant number, since it is smaller than the sum of its proper divisors (34073692377030).

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

18856315190970 is a wasteful number, since it uses less digits than its factorization.

18856315190970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675695004 (or 3675694998 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 63.

The spelling of 18856315190970 in words is "eighteen trillion, eight hundred fifty-six billion, three hundred fifteen million, one hundred ninety thousand, nine hundred seventy".