18797012408 has 16 divisors (see below), whose sum is σ = 35770435080. Its totient is φ = 9258229728.

The previous prime is 18797012369. The next prime is 18797012441. The reversal of 18797012408 is 80421079781.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17533991 + ... + 17535062.

Almost surely, 2^18797012408 is an apocalyptic number.

It is an amenable number.

18797012408 is a deficient number, since it is larger than the sum of its proper divisors (16973422672).

18797012408 is a wasteful number, since it uses less digits than its factorization.

18797012408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35069126 (or 35069122 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 47.

The spelling of 18797012408 in words is "eighteen billion, seven hundred ninety-seven million, twelve thousand, four hundred eight".