275128257557 has 8 divisors (see below), whose sum is σ = 275842350336. Its totient is φ = 274414271472.

The previous prime is 275128257517. The next prime is 275128257559. The reversal of 275128257557 is 755752821572.

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

It is a cyclic number.

It is not a de Polignac number, because 275128257557 - 2²⁴ = 275111480341 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 (275128257559) 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, 9379568 + ... + 9408854.

It is an arithmetic number, because the mean of its divisors is an integer number (34480293792).

Almost surely, 2^275128257557 is an apocalyptic number.

It is an amenable number.

275128257557 is a deficient number, since it is larger than the sum of its proper divisors (714092779).

275128257557 is a wasteful number, since it uses less digits than its factorization.

275128257557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53347.

The product of its digits is 13720000, while the sum is 56.

The spelling of 275128257557 in words is "two hundred seventy-five billion, one hundred twenty-eight million, two hundred fifty-seven thousand, five hundred fifty-seven".