18863053352640 has 168 divisors, whose sum is σ = 74149764567840. Its totient is φ = 4311555047424.

The previous prime is 18863053352579. The next prime is 18863053352687. The reversal of 18863053352640 is 4625335036881.

18863053352640 is a `hidden beast` number, since 1 + 8 + 8 + 63 + 0 + 53 + 3 + 526 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467813505 + ... + 467853824.

Almost surely, 2^{18863053352640} is an apocalyptic number.

18863053352640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18863053352640 is an abundant number, since it is smaller than the sum of its proper divisors (55286711215200).

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

18863053352640 is a wasteful number, since it uses less digits than its factorization.

18863053352640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935667359 (or 935667346 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 54.

The spelling of 18863053352640 in words is "eighteen trillion, eight hundred sixty-three billion, fifty-three million, three hundred fifty-two thousand, six hundred forty".