18077940330 has 32 divisors (see below), whose sum is σ = 43909798464. Its totient is φ = 4762701696.

The previous prime is 18077940319. The next prime is 18077940347. The reversal of 18077940330 is 3304977081.

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, 3627619 + ... + 3632598.

It is an arithmetic number, because the mean of its divisors is an integer number (1372181202).

Almost surely, 2^18077940330 is an apocalyptic number.

18077940330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18077940330 is an abundant number, since it is smaller than the sum of its proper divisors (25831858134).

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

18077940330 is a wasteful number, since it uses less digits than its factorization.

18077940330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260310.

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 18077940330 in words is "eighteen billion, seventy-seven million, nine hundred forty thousand, three hundred thirty".