12779057232 has 240 divisors, whose sum is σ = 38674608000. Its totient is φ = 4039580160.

The previous prime is 12779057197. The next prime is 12779057279. The reversal of 12779057232 is 23275097721.

12779057232 is a `hidden beast` number, since 1 + 2 + 7 + 79 + 0 + 572 + 3 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45476932 + ... + 45477212.

It is an arithmetic number, because the mean of its divisors is an integer number (161144200).

Almost surely, 2^12779057232 is an apocalyptic number.

12779057232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12779057232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19337304000).

12779057232 is an abundant number, since it is smaller than the sum of its proper divisors (25895550768).

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

12779057232 is a wasteful number, since it uses less digits than its factorization.

12779057232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

It can be divided in two parts, 1277 and 9057232, that added together give a palindrome (9058509).

The spelling of 12779057232 in words is "twelve billion, seven hundred seventy-nine million, fifty-seven thousand, two hundred thirty-two".