12277743751 has 12 divisors (see below), whose sum is σ = 15380910552. Its totient is φ = 9714258288.

The previous prime is 12277743739. The next prime is 12277743773. The reversal of 12277743751 is 15734777221.

It is a de Polignac number, because none of the positive numbers 2^k-12277743751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277743701) 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, 9636525 + ... + 9637798.

It is an arithmetic number, because the mean of its divisors is an integer number (1281742546).

Almost surely, 2^12277743751 is an apocalyptic number.

12277743751 is a deficient number, since it is larger than the sum of its proper divisors (3103166801).

12277743751 is a wasteful number, since it uses less digits than its factorization.

12277743751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19274350 (or 19274343 counting only the distinct ones).

The product of its digits is 576240, while the sum is 46.

The spelling of 12277743751 in words is "twelve billion, two hundred seventy-seven million, seven hundred forty-three thousand, seven hundred fifty-one".