18237953097 has 48 divisors (see below), whose sum is σ = 32437874560. Its totient is φ = 9615614976.

The previous prime is 18237953059. The next prime is 18237953099. The reversal of 18237953097 is 79035973281.

18237953097 is a `hidden beast` number, since 18 + 2 + 3 + 7 + 9 + 530 + 97 = 666.

It is not a de Polignac number, because 18237953097 - 2⁶ = 18237953033 is a prime.

It is a super-3 number, since 3×18237953097³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18237953099) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2591898 + ... + 2598924.

Almost surely, 2^18237953097 is an apocalyptic number.

It is an amenable number.

18237953097 is a deficient number, since it is larger than the sum of its proper divisors (14199921463).

18237953097 is a wasteful number, since it uses less digits than its factorization.

18237953097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222 (or 10219 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 18237953097 in words is "eighteen billion, two hundred thirty-seven million, nine hundred fifty-three thousand, ninety-seven".