12277858977 has 24 divisors (see below), whose sum is σ = 18557580288. Its totient is φ = 7812676800.

The previous prime is 12277858973. The next prime is 12277858979. The reversal of 12277858977 is 77985877221.

It is not a de Polignac number, because 12277858977 - 2² = 12277858973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12277858973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281049 + ... + 321782.

It is an arithmetic number, because the mean of its divisors is an integer number (773232512).

Almost surely, 2^12277858977 is an apocalyptic number.

It is an amenable number.

12277858977 is a deficient number, since it is larger than the sum of its proper divisors (6279721311).

12277858977 is a wasteful number, since it uses less digits than its factorization.

12277858977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602941 (or 602938 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 63.

The spelling of 12277858977 in words is "twelve billion, two hundred seventy-seven million, eight hundred fifty-eight thousand, nine hundred seventy-seven".