1388472068872 has 64 divisors (see below), whose sum is σ = 3040961495040. Its totient is φ = 582058612800.

The previous prime is 1388472068831. The next prime is 1388472068881. The reversal of 1388472068872 is 2788602748831.

It is a super-2 number, since 2×1388472068872² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869904 + ... + 1879807.

It is an arithmetic number, because the mean of its divisors is an integer number (47515023360).

Almost surely, 2^{1388472068872} is an apocalyptic number.

It is an amenable number.

1388472068872 is an abundant number, since it is smaller than the sum of its proper divisors (1652489426168).

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

1388472068872 is a wasteful number, since it uses less digits than its factorization.

1388472068872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749922 (or 2749918 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 64.

The spelling of 1388472068872 in words is "one trillion, three hundred eighty-eight billion, four hundred seventy-two million, sixty-eight thousand, eight hundred seventy-two".