18890872528064 has 14 divisors (see below), whose sum is σ = 37486575173004. Its totient is φ = 9445436264000.

The previous prime is 18890872528007. The next prime is 18890872528091. The reversal of 18890872528064 is 46082527809881.

It is a junction number, because it is equal to n+sod(n) for n = 18890872527985 and 18890872528003.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 147584941562 + ... + 147584941689.

Almost surely, 2^{18890872528064} is an apocalyptic number.

It is an amenable number.

18890872528064 is a deficient number, since it is larger than the sum of its proper divisors (18595702644940).

18890872528064 is an equidigital number, since it uses as much as digits as its factorization.

18890872528064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295169883263 (or 295169883253 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 68.

The spelling of 18890872528064 in words is "eighteen trillion, eight hundred ninety billion, eight hundred seventy-two million, five hundred twenty-eight thousand, sixty-four".