18146531376 has 30 divisors (see below), whose sum is σ = 50785084740. Its totient is φ = 6048843744.

The previous prime is 18146531269. The next prime is 18146531383. The reversal of 18146531376 is 67313564181.

18146531376 is a `hidden beast` number, since 1 + 8 + 1 + 46 + 531 + 3 + 76 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63008646 + ... + 63008933.

It is an arithmetic number, because the mean of its divisors is an integer number (1692836158).

Almost surely, 2^18146531376 is an apocalyptic number.

18146531376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18146531376 is an abundant number, since it is smaller than the sum of its proper divisors (32638553364).

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

18146531376 is a wasteful number, since it uses less digits than its factorization.

18146531376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126017593 (or 126017584 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 18146531376 in words is "eighteen billion, one hundred forty-six million, five hundred thirty-one thousand, three hundred seventy-six".