18958488768 has 84 divisors (see below), whose sum is σ = 56214965040. Its totient is φ = 6101577216.

The previous prime is 18958488767. The next prime is 18958488779. The reversal of 18958488768 is 86788485981.

18958488768 is a `hidden beast` number, since 1 + 89 + 5 + 8 + 488 + 7 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 18958488696 and 18958488705.

It is not an unprimeable number, because it can be changed into a prime (18958488763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550780 + ... + 584187.

Almost surely, 2^18958488768 is an apocalyptic number.

18958488768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18958488768 is an abundant number, since it is smaller than the sum of its proper divisors (37256476272).

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

18958488768 is a wasteful number, since it uses less digits than its factorization.

18958488768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135014 (or 1135001 counting only the distinct ones).

The product of its digits is 247726080, while the sum is 72.

The spelling of 18958488768 in words is "eighteen billion, nine hundred fifty-eight million, four hundred eighty-eight thousand, seven hundred sixty-eight".