1375434044885 has 16 divisors (see below), whose sum is σ = 1703734289136. Its totient is φ = 1065173534208.

The previous prime is 1375434044839. The next prime is 1375434044893. The reversal of 1375434044885 is 5884404345731.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 436505990596 + 938928054289 = 660686^2 + 968983^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375434044885 - 2⁶ = 1375434044821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1375434044885.

It is a congruent number.

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, 18833552 + ... + 18906441.

It is an arithmetic number, because the mean of its divisors is an integer number (106483393071).

Almost surely, 2^{1375434044885} is an apocalyptic number.

It is an amenable number.

1375434044885 is a deficient number, since it is larger than the sum of its proper divisors (328300244251).

1375434044885 is a wasteful number, since it uses less digits than its factorization.

1375434044885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37740232.

The product of its (nonzero) digits is 25804800, while the sum is 56.

The spelling of 1375434044885 in words is "one trillion, three hundred seventy-five billion, four hundred thirty-four million, forty-four thousand, eight hundred eighty-five".