18371576940 has 48 divisors (see below), whose sum is σ = 52312296960. Its totient is φ = 4816050880.

The previous prime is 18371576917. The next prime is 18371577061. The reversal of 18371576940 is 4967517381.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2591316 + ... + 2598395.

It is an arithmetic number, because the mean of its divisors is an integer number (1089839520).

Almost surely, 2^18371576940 is an apocalyptic number.

18371576940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18371576940 is an abundant number, since it is smaller than the sum of its proper divisors (33940720020).

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

18371576940 is a wasteful number, since it uses less digits than its factorization.

18371576940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189782 (or 5189780 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 18371576940 in words is "eighteen billion, three hundred seventy-one million, five hundred seventy-six thousand, nine hundred forty".