18497476858112 has 288 divisors, whose sum is σ = 44094829363200. Its totient is φ = 7579233607680.

The previous prime is 18497476858097. The next prime is 18497476858127. The reversal of 18497476858112 is 21185867479481.

It is an interprime number because it is at equal distance from previous prime (18497476858097) and next prime (18497476858127).

It is a Harshad number since it is a multiple of its sum of digits (71).

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, 1445221889 + ... + 1445234687.

It is an arithmetic number, because the mean of its divisors is an integer number (153107046400).

Almost surely, 2^{18497476858112} 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 18497476858112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22047414681600).

18497476858112 is an abundant number, since it is smaller than the sum of its proper divisors (25597352505088).

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

18497476858112 is a wasteful number, since it uses less digits than its factorization.

18497476858112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13237 (or 13223 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 71.

The spelling of 18497476858112 in words is "eighteen trillion, four hundred ninety-seven billion, four hundred seventy-six million, eight hundred fifty-eight thousand, one hundred twelve".