12407773887 has 16 divisors (see below), whose sum is σ = 18425566560. Its totient is φ = 8252193600.

The previous prime is 12407773879. The next prime is 12407773933. The reversal of 12407773887 is 78837770421.

It is not a de Polignac number, because 12407773887 - 2³ = 12407773879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12407773817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534414 + ... + 557147.

It is an arithmetic number, because the mean of its divisors is an integer number (1151597910).

Almost surely, 2^12407773887 is an apocalyptic number.

12407773887 is a deficient number, since it is larger than the sum of its proper divisors (6017792673).

12407773887 is a wasteful number, since it uses less digits than its factorization.

12407773887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091991 (or 1091985 counting only the distinct ones).

The product of its (nonzero) digits is 3687936, while the sum is 54.

The spelling of 12407773887 in words is "twelve billion, four hundred seven million, seven hundred seventy-three thousand, eight hundred eighty-seven".