26606609972 has 12 divisors (see below), whose sum is σ = 46577593860. Its totient is φ = 13298726016.

The previous prime is 26606609963. The next prime is 26606609989. The reversal of 26606609972 is 27990660662.

It can be written as a sum of positive squares in 2 ways, for example, as 13056718756 + 13549891216 = 114266^2 + 116404^2 .

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, 1131653 + ... + 1154924.

It is an arithmetic number, because the mean of its divisors is an integer number (3881466155).

Almost surely, 2^26606609972 is an apocalyptic number.

It is an amenable number.

26606609972 is a deficient number, since it is larger than the sum of its proper divisors (19970983888).

26606609972 is a wasteful number, since it uses less digits than its factorization.

26606609972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289490 (or 2289488 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 26606609972 in words is "twenty-six billion, six hundred six million, six hundred nine thousand, nine hundred seventy-two".