1375935391117 has 4 divisors (see below), whose sum is σ = 1572497589856. Its totient is φ = 1179373192380.

The previous prime is 1375935391109. The next prime is 1375935391153. The reversal of 1375935391117 is 7111935395731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1375935391117 - 2³ = 1375935391109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375935391417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98281099359 + ... + 98281099372.

It is an arithmetic number, because the mean of its divisors is an integer number (393124397464).

Almost surely, 2^{1375935391117} is an apocalyptic number.

It is an amenable number.

1375935391117 is a deficient number, since it is larger than the sum of its proper divisors (196562198739).

1375935391117 is an equidigital number, since it uses as much as digits as its factorization.

1375935391117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196562198738.

The product of its digits is 2679075, while the sum is 55.

The spelling of 1375935391117 in words is "one trillion, three hundred seventy-five billion, nine hundred thirty-five million, three hundred ninety-one thousand, one hundred seventeen".