1317777775140 has 48 divisors (see below), whose sum is σ = 3689827872192. Its totient is φ = 351402635136.

The previous prime is 1317777775123. The next prime is 1317777775169. The reversal of 1317777775140 is 415777777131.

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, 7875427 + ... + 8041013.

It is an arithmetic number, because the mean of its divisors is an integer number (76871414004).

Almost surely, 2^{1317777775140} is an apocalyptic number.

1317777775140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1317777775140 is an abundant number, since it is smaller than the sum of its proper divisors (2372050097052).

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

1317777775140 is a wasteful number, since it uses less digits than its factorization.

1317777775140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298236 (or 298234 counting only the distinct ones).

The product of its (nonzero) digits is 7058940, while the sum is 57.

The spelling of 1317777775140 in words is "one trillion, three hundred seventeen billion, seven hundred seventy-seven million, seven hundred seventy-five thousand, one hundred forty".