2018857499136 has 480 divisors, whose sum is σ = 6340261863936. Its totient is φ = 640493568000.

The previous prime is 2018857499129. The next prime is 2018857499147. The reversal of 2018857499136 is 6319947588102.

2018857499136 is a `hidden beast` number, since 2 + 0 + 1 + 8 + 8 + 5 + 7 + 499 + 136 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235266366 + ... + 235274946.

It is a 1-persistent number, because it is pandigital, but 2⋅2018857499136 = 4037714998272 is not.

Almost surely, 2^{2018857499136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018857499136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3170130931968).

2018857499136 is an abundant number, since it is smaller than the sum of its proper divisors (4321404364800).

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

2018857499136 is an frugal number, since it uses more digits than its factorization.

2018857499136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8706 (or 8678 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 2018857499136 in words is "two trillion, eighteen billion, eight hundred fifty-seven million, four hundred ninety-nine thousand, one hundred thirty-six".