18386285952 has 64 divisors (see below), whose sum is σ = 48855960000. Its totient is φ = 6126580224.

The previous prime is 18386285923. The next prime is 18386285977. The reversal of 18386285952 is 25958268381.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×18386285952² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18386285892 and 18386285901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355299 + ... + 1368797.

It is an arithmetic number, because the mean of its divisors is an integer number (763374375).

Almost surely, 2^18386285952 is an apocalyptic number.

18386285952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18386285952 is an abundant number, since it is smaller than the sum of its proper divisors (30469674048).

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

18386285952 is a wasteful number, since it uses less digits than its factorization.

18386285952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17063 (or 17051 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 57.

The spelling of 18386285952 in words is "eighteen billion, three hundred eighty-six million, two hundred eighty-five thousand, nine hundred fifty-two".