2151814384360 has 32 divisors (see below), whose sum is σ = 4841624124360. Its totient is φ = 860718329856.

The previous prime is 2151814384339. The next prime is 2151814384373. The reversal of 2151814384360 is 634834181512.

It can be written as a sum of positive squares in 4 ways, for example, as 1292718972484 + 859095411876 = 1136978^2 + 926874^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2151814384360.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8952472 + ... + 9189688.

Almost surely, 2^{2151814384360} is an apocalyptic number.

2151814384360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151814384360 is an abundant number, since it is smaller than the sum of its proper divisors (2689809740000).

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

2151814384360 is a wasteful number, since it uses less digits than its factorization.

2151814384360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464005 (or 464001 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 46.

The spelling of 2151814384360 in words is "two trillion, one hundred fifty-one billion, eight hundred fourteen million, three hundred eighty-four thousand, three hundred sixty".