18893506645776 has 80 divisors (see below), whose sum is σ = 56012285107328. Its totient is φ = 5375745792000.

The previous prime is 18893506645697. The next prime is 18893506645781. The reversal of 18893506645776 is 67754660539881.

It is a junction number, because it is equal to n+sod(n) for n = 18893506645698 and 18893506645707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116580175 + ... + 116742126.

Almost surely, 2^{18893506645776} is an apocalyptic number.

18893506645776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18893506645776 is an abundant number, since it is smaller than the sum of its proper divisors (37118778461552).

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

18893506645776 is a wasteful number, since it uses less digits than its factorization.

18893506645776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233322560 (or 233322554 counting only the distinct ones).

The product of its (nonzero) digits is 1828915200, while the sum is 75.

The spelling of 18893506645776 in words is "eighteen trillion, eight hundred ninety-three billion, five hundred six million, six hundred forty-five thousand, seven hundred seventy-six".