18400248496 has 20 divisors (see below), whose sum is σ = 40743407632. Its totient is φ = 7885820736.

The previous prime is 18400248491. The next prime is 18400248523. The reversal of 18400248496 is 69484200481.

It is not an unprimeable number, because it can be changed into a prime (18400248491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82143855 + ... + 82144078.

Almost surely, 2^18400248496 is an apocalyptic number.

18400248496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18400248496 is an abundant number, since it is smaller than the sum of its proper divisors (22343159136).

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

18400248496 is a wasteful number, since it uses less digits than its factorization.

18400248496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164287948 (or 164287942 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 18400248496 in words is "eighteen billion, four hundred million, two hundred forty-eight thousand, four hundred ninety-six".