18340948976 has 40 divisors (see below), whose sum is σ = 42749585280. Its totient is φ = 7446700224.

The previous prime is 18340948943. The next prime is 18340948991. The reversal of 18340948976 is 67984904381.

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, 4307306 + ... + 4311561.

It is an arithmetic number, because the mean of its divisors is an integer number (1068739632).

Almost surely, 2^18340948976 is an apocalyptic number.

18340948976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18340948976 is an abundant number, since it is smaller than the sum of its proper divisors (24408636304).

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

18340948976 is a wasteful number, since it uses less digits than its factorization.

18340948976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8618901 (or 8618895 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 18340948976 in words is "eighteen billion, three hundred forty million, nine hundred forty-eight thousand, nine hundred seventy-six".