18785374848 has 160 divisors (see below), whose sum is σ = 56335799520. Its totient is φ = 6213542400.

The previous prime is 18785374847. The next prime is 18785374849. The reversal of 18785374848 is 84847358781.

18785374848 is a `hidden beast` number, since 18 + 7 + 8 + 537 + 4 + 84 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (18785374847) and next prime (18785374849).

It is a super-3 number, since 3×18785374848³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18785374847) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1351293 + ... + 1365123.

It is an arithmetic number, because the mean of its divisors is an integer number (352098747).

Almost surely, 2^18785374848 is an apocalyptic number.

18785374848 is a gapful number since it is divisible by the number (18) 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 18785374848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28167899760).

18785374848 is an abundant number, since it is smaller than the sum of its proper divisors (37550424672).

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

18785374848 is a wasteful number, since it uses less digits than its factorization.

18785374848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13988 (or 13967 counting only the distinct ones).

The product of its digits is 48168960, while the sum is 63.

The spelling of 18785374848 in words is "eighteen billion, seven hundred eighty-five million, three hundred seventy-four thousand, eight hundred forty-eight".