18372082378 has 32 divisors (see below), whose sum is σ = 30855888000. Its totient is φ = 8145821376.

The previous prime is 18372082369. The next prime is 18372082397. The reversal of 18372082378 is 87328027381.

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, 88825 + ... + 211267.

It is an arithmetic number, because the mean of its divisors is an integer number (964246500).

Almost surely, 2^18372082378 is an apocalyptic number.

18372082378 is a deficient number, since it is larger than the sum of its proper divisors (12483805622).

18372082378 is a wasteful number, since it uses less digits than its factorization.

18372082378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122686.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 18372082378 in words is "eighteen billion, three hundred seventy-two million, eighty-two thousand, three hundred seventy-eight".