12776758452 has 96 divisors (see below), whose sum is σ = 34597449600. Its totient is φ = 4073504256.

The previous prime is 12776758349. The next prime is 12776758499. The reversal of 12776758452 is 25485767721.

12776758452 is a `hidden beast` number, since 1 + 2 + 7 + 7 + 6 + 7 + 584 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208668 + ... + 262860.

It is an arithmetic number, because the mean of its divisors is an integer number (360390100).

Almost surely, 2^12776758452 is an apocalyptic number.

12776758452 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 12776758452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17298724800).

12776758452 is an abundant number, since it is smaller than the sum of its proper divisors (21820691148).

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

12776758452 is a wasteful number, since it uses less digits than its factorization.

12776758452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54302 (or 54294 counting only the distinct ones).

The product of its digits is 6585600, while the sum is 54.

The spelling of 12776758452 in words is "twelve billion, seven hundred seventy-six million, seven hundred fifty-eight thousand, four hundred fifty-two".