18499970639862 has 24 divisors (see below), whose sum is σ = 40086025340400. Its totient is φ = 6166232938320.

The previous prime is 18499970639831. The next prime is 18499970639873. The reversal of 18499970639862 is 26893607999481.

18499970639862 is a `hidden beast` number, since 1 + 8 + 499 + 9 + 7 + 0 + 63 + 9 + 8 + 62 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35059314 + ... + 35583077.

It is an arithmetic number, because the mean of its divisors is an integer number (1670251055850).

Almost surely, 2^{18499970639862} is an apocalyptic number.

18499970639862 is an abundant number, since it is smaller than the sum of its proper divisors (21586054700538).

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

18499970639862 is a wasteful number, since it uses less digits than its factorization.

18499970639862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70656948 (or 70656945 counting only the distinct ones).

The product of its (nonzero) digits is 2539579392, while the sum is 81.

The spelling of 18499970639862 in words is "eighteen trillion, four hundred ninety-nine billion, nine hundred seventy million, six hundred thirty-nine thousand, eight hundred sixty-two".