2168370879720 has 64 divisors (see below), whose sum is σ = 6510764759040. Its totient is φ = 577729824000.

The previous prime is 2168370879673. The next prime is 2168370879737. The reversal of 2168370879720 is 279780738612.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 7711471 + ... + 7987710.

It is an arithmetic number, because the mean of its divisors is an integer number (101730699360).

Almost surely, 2^{2168370879720} is an apocalyptic number.

2168370879720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2168370879720 is an abundant number, since it is smaller than the sum of its proper divisors (4342393879320).

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

2168370879720 is a wasteful number, since it uses less digits than its factorization.

2168370879720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15700346 (or 15700342 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 2168370879720 in words is "two trillion, one hundred sixty-eight billion, three hundred seventy million, eight hundred seventy-nine thousand, seven hundred twenty".