18457757140 has 96 divisors (see below), whose sum is σ = 42909398784. Its totient is φ = 6633707520.

The previous prime is 18457757113. The next prime is 18457757161. The reversal of 18457757140 is 4175775481.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4588330 + ... + 4592350.

It is an arithmetic number, because the mean of its divisors is an integer number (446972904).

Almost surely, 2^18457757140 is an apocalyptic number.

18457757140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18457757140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21454699392).

18457757140 is an abundant number, since it is smaller than the sum of its proper divisors (24451641644).

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

18457757140 is a wasteful number, since it uses less digits than its factorization.

18457757140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4657 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 49.

The spelling of 18457757140 in words is "eighteen billion, four hundred fifty-seven million, seven hundred fifty-seven thousand, one hundred forty".