18397260132 has 48 divisors (see below), whose sum is σ = 43751393280. Its totient is φ = 6015727872.

The previous prime is 18397260113. The next prime is 18397260143. The reversal of 18397260132 is 23106279381.

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, 67818 + ... + 203454.

It is an arithmetic number, because the mean of its divisors is an integer number (911487360).

Almost surely, 2^18397260132 is an apocalyptic number.

18397260132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is a pronic number, being equal to 135636×135637.

It is an amenable number.

18397260132 is an abundant number, since it is smaller than the sum of its proper divisors (25354133148).

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

18397260132 is a wasteful number, since it uses less digits than its factorization.

18397260132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135860 (or 135858 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 18397260132 in words is "eighteen billion, three hundred ninety-seven million, two hundred sixty thousand, one hundred thirty-two".