18854035877892 has 48 divisors (see below), whose sum is σ = 44126207637120. Its totient is φ = 6265621969152.

The previous prime is 18854035877879. The next prime is 18854035877933. The reversal of 18854035877892 is 29877853045881.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16938178 + ... + 18016934.

It is an arithmetic number, because the mean of its divisors is an integer number (919295992440).

Almost surely, 2^{18854035877892} is an apocalyptic number.

18854035877892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18854035877892 is an abundant number, since it is smaller than the sum of its proper divisors (25272171759228).

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

18854035877892 is a wasteful number, since it uses less digits than its factorization.

18854035877892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083180 (or 1083178 counting only the distinct ones).

The product of its (nonzero) digits is 1083801600, while the sum is 75.

The spelling of 18854035877892 in words is "eighteen trillion, eight hundred fifty-four billion, thirty-five million, eight hundred seventy-seven thousand, eight hundred ninety-two".