755879978557 has 8 divisors (see below), whose sum is σ = 825706169280. Its totient is φ = 686238759360.

The previous prime is 755879978537. The next prime is 755879978561.

755879978557 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-755879978557 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 (755879978527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46234332 + ... + 46250677.

It is an arithmetic number, because the mean of its divisors is an integer number (103213271160).

Almost surely, 2^755879978557 is an apocalyptic number.

It is an amenable number.

755879978557 is a deficient number, since it is larger than the sum of its proper divisors (69826190723).

755879978557 is a wasteful number, since it uses less digits than its factorization.

755879978557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92485763.

The product of its digits is 7779240000, while the sum is 82.

The spelling of 755879978557 in words is "seven hundred fifty-five billion, eight hundred seventy-nine million, nine hundred seventy-eight thousand, five hundred fifty-seven".