12961276124756 has 12 divisors (see below), whose sum is σ = 22916070674868. Its totient is φ = 6413827360512.

The previous prime is 12961276124747. The next prime is 12961276124807. The reversal of 12961276124756 is 65742167216921.

It can be written as a sum of positive squares in 2 ways, for example, as 8324575234756 + 4636700890000 = 2885234^2 + 2153300^2 .

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12961276124695 and 12961276124704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16702675031 + ... + 16702675806.

It is an arithmetic number, because the mean of its divisors is an integer number (1909672556239).

Almost surely, 2^{12961276124756} is an apocalyptic number.

It is an amenable number.

12961276124756 is a deficient number, since it is larger than the sum of its proper divisors (9954794550112).

12961276124756 is a wasteful number, since it uses less digits than its factorization.

12961276124756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33405350938 (or 33405350936 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 59.

The spelling of 12961276124756 in words is "twelve trillion, nine hundred sixty-one billion, two hundred seventy-six million, one hundred twenty-four thousand, seven hundred fifty-six".