57156128219 has 6 divisors (see below), whose sum is σ = 59749223436. Its totient is φ = 54671078660.

The previous prime is 57156128207. The next prime is 57156128221. The reversal of 57156128219 is 91282165175.

It is a happy number.

It is not a de Polignac number, because 57156128219 - 2³² = 52861160923 is a prime.

It is a super-2 number, since 2×57156128219² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57156128299) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54022277 + ... + 54023334.

It is an arithmetic number, because the mean of its divisors is an integer number (9958203906).

Almost surely, 2^57156128219 is an apocalyptic number.

57156128219 is a deficient number, since it is larger than the sum of its proper divisors (2593095217).

57156128219 is a wasteful number, since it uses less digits than its factorization.

57156128219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108045657 (or 108045634 counting only the distinct ones).

The product of its digits is 302400, while the sum is 47.

The spelling of 57156128219 in words is "fifty-seven billion, one hundred fifty-six million, one hundred twenty-eight thousand, two hundred nineteen".