1440667356872 has 16 divisors (see below), whose sum is σ = 2715247417740. Its totient is φ = 716601378816.

The previous prime is 1440667356853. The next prime is 1440667356893. The reversal of 1440667356872 is 2786537660441.

It can be written as a sum of positive squares in 2 ways, for example, as 1439937600676 + 729756196 = 1199974^2 + 27014^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466535813 + ... + 466538900.

Almost surely, 2^{1440667356872} is an apocalyptic number.

It is an amenable number.

1440667356872 is a deficient number, since it is larger than the sum of its proper divisors (1274580060868).

1440667356872 is a wasteful number, since it uses less digits than its factorization.

1440667356872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933074912 (or 933074908 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 59.

The spelling of 1440667356872 in words is "one trillion, four hundred forty billion, six hundred sixty-seven million, three hundred fifty-six thousand, eight hundred seventy-two".