18798650051064 has 64 divisors (see below), whose sum is σ = 50617798926240. Its totient is φ = 5783508725760.

The previous prime is 18798650051039. The next prime is 18798650051087. The reversal of 18798650051064 is 46015005689781.

It is a junction number, because it is equal to n+sod(n) for n = 18798650050989 and 18798650051007.

It is a congruent number.

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, 982657 + ... + 6209904.

Almost surely, 2^{18798650051064} is an apocalyptic number.

It is an amenable number.

18798650051064 is an abundant number, since it is smaller than the sum of its proper divisors (31819148875176).

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

18798650051064 is a wasteful number, since it uses less digits than its factorization.

18798650051064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7200960 (or 7200956 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 60.

The spelling of 18798650051064 in words is "eighteen trillion, seven hundred ninety-eight billion, six hundred fifty million, fifty-one thousand, sixty-four".