1390072972948 has 18 divisors (see below), whose sum is σ = 2673880037738. Its totient is φ = 631851351120.

The previous prime is 1390072972921. The next prime is 1390072972957. The reversal of 1390072972948 is 8492792700931.

It can be written as a sum of positive squares in only one way, i.e., 1040730506244 + 349342466704 = 1020162^2 + 591052^2 .

It is a super-2 number, since 2×1390072972948² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1436025315 + ... + 1436026282.

Almost surely, 2^{1390072972948} is an apocalyptic number.

It is an amenable number.

1390072972948 is a deficient number, since it is larger than the sum of its proper divisors (1283807064790).

1390072972948 is a wasteful number, since it uses less digits than its factorization.

1390072972948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872051623 (or 2872051610 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 1390072972948 in words is "one trillion, three hundred ninety billion, seventy-two million, nine hundred seventy-two thousand, nine hundred forty-eight".