12057581277 has 12 divisors (see below), whose sum is σ = 19904578720. Its totient is φ = 6890046408.

The previous prime is 12057581257. The next prime is 12057581323. The reversal of 12057581277 is 77218575021.

12057581277 is a `hidden beast` number, since 1 + 2 + 0 + 575 + 8 + 1 + 2 + 77 = 666.

It is not a de Polignac number, because 12057581277 - 2⁶ = 12057581213 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 (12057581257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95695027 + ... + 95695152.

Almost surely, 2^12057581277 is an apocalyptic number.

It is an amenable number.

12057581277 is a deficient number, since it is larger than the sum of its proper divisors (7846997443).

12057581277 is a wasteful number, since it uses less digits than its factorization.

12057581277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191390192 (or 191390189 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 45.

The spelling of 12057581277 in words is "twelve billion, fifty-seven million, five hundred eighty-one thousand, two hundred seventy-seven".