57127020865 has 8 divisors (see below), whose sum is σ = 68805387648. Its totient is φ = 45532974960.

The previous prime is 57127020829. The next prime is 57127020887. The reversal of 57127020865 is 56802072175.

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

It is not a de Polignac number, because 57127020865 - 2⁷ = 57127020737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21078727 + ... + 21081436.

It is an arithmetic number, because the mean of its divisors is an integer number (8600673456).

Almost surely, 2^57127020865 is an apocalyptic number.

It is an amenable number.

57127020865 is a deficient number, since it is larger than the sum of its proper divisors (11678366783).

57127020865 is a wasteful number, since it uses less digits than its factorization.

57127020865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42160439.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 57127020865 in words is "fifty-seven billion, one hundred twenty-seven million, twenty thousand, eight hundred sixty-five".