18497395336 has 24 divisors (see below), whose sum is σ = 40345085070. Its totient is φ = 7927454976.

The previous prime is 18497395333. The next prime is 18497395361. The reversal of 18497395336 is 63359379481.

It can be written as a sum of positive squares in only one way, i.e., 15950174436 + 2547220900 = 126294^2 + 50470^2 .

It is not an unprimeable number, because it can be changed into a prime (18497395333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23593225 + ... + 23594008.

Almost surely, 2^18497395336 is an apocalyptic number.

It is an amenable number.

18497395336 is an abundant number, since it is smaller than the sum of its proper divisors (21847689734).

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

18497395336 is a wasteful number, since it uses less digits than its factorization.

18497395336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47187253 (or 47187242 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 58.

The spelling of 18497395336 in words is "eighteen billion, four hundred ninety-seven million, three hundred ninety-five thousand, three hundred thirty-six".