18900424397316 has 144 divisors (see below), whose sum is σ = 58398149698560. Its totient is φ = 4695757577280.

The previous prime is 18900424397311. The next prime is 18900424397329. The reversal of 18900424397316 is 61379342400981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18900424397311) 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, 63376096 + ... + 63673623.

It is an arithmetic number, because the mean of its divisors is an integer number (405542706240).

Almost surely, 2^{18900424397316} is an apocalyptic number.

It is an amenable number.

18900424397316 is an abundant number, since it is smaller than the sum of its proper divisors (39497725301244).

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

18900424397316 is a wasteful number, since it uses less digits than its factorization.

18900424397316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127049774 (or 127049765 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 18900424397316 in words is "eighteen trillion, nine hundred billion, four hundred twenty-four million, three hundred ninety-seven thousand, three hundred sixteen".