1375155291879 has 32 divisors (see below), whose sum is σ = 2050573186560. Its totient is φ = 910786892544.

The previous prime is 1375155291877. The next prime is 1375155291949. The reversal of 1375155291879 is 9781925515731.

1375155291879 is a `hidden beast` number, since 1 + 3 + 7 + 5 + 1 + 552 + 9 + 1 + 8 + 79 = 666.

It is not a de Polignac number, because 1375155291879 - 2¹ = 1375155291877 is a prime.

It is a super-3 number, since 3×1375155291879³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375155291877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11351542 + ... + 11472044.

It is an arithmetic number, because the mean of its divisors is an integer number (64080412080).

Almost surely, 2^{1375155291879} is an apocalyptic number.

1375155291879 is a deficient number, since it is larger than the sum of its proper divisors (675417894681).

1375155291879 is a wasteful number, since it uses less digits than its factorization.

1375155291879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123268 (or 123262 counting only the distinct ones).

The product of its digits is 23814000, while the sum is 63.

The spelling of 1375155291879 in words is "one trillion, three hundred seventy-five billion, one hundred fifty-five million, two hundred ninety-one thousand, eight hundred seventy-nine".