12790178756 has 6 divisors (see below), whose sum is σ = 22382812830. Its totient is φ = 6395089376.

The previous prime is 12790178749. The next prime is 12790178809. The reversal of 12790178756 is 65787109721.

It can be written as a sum of positive squares in only one way, i.e., 12117606400 + 672572356 = 110080^2 + 25934^2 .

It is a super-2 number, since 2×12790178756² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12790178698 and 12790178707.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1598772341 + ... + 1598772348.

It is an arithmetic number, because the mean of its divisors is an integer number (3730468805).

Almost surely, 2^12790178756 is an apocalyptic number.

It is an amenable number.

12790178756 is a deficient number, since it is larger than the sum of its proper divisors (9592634074).

12790178756 is a wasteful number, since it uses less digits than its factorization.

12790178756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197544693 (or 3197544691 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 53.

The spelling of 12790178756 in words is "twelve billion, seven hundred ninety million, one hundred seventy-eight thousand, seven hundred fifty-six".