12791278362 has 32 divisors (see below), whose sum is σ = 26302328064. Its totient is φ = 4144046400.

The previous prime is 12791278337. The next prime is 12791278369. The reversal of 12791278362 is 26387219721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12791278369) 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, 178287 + ... + 239517.

It is an arithmetic number, because the mean of its divisors is an integer number (821947752).

Almost surely, 2^12791278362 is an apocalyptic number.

12791278362 is an abundant number, since it is smaller than the sum of its proper divisors (13511049702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12791278362 is a wasteful number, since it uses less digits than its factorization.

12791278362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62214.

The product of its digits is 508032, while the sum is 48.

The spelling of 12791278362 in words is "twelve billion, seven hundred ninety-one million, two hundred seventy-eight thousand, three hundred sixty-two".