26972646625 has 16 divisors (see below), whose sum is σ = 34747734528. Its totient is φ = 20882046000.

The previous prime is 26972646619. The next prime is 26972646647. The reversal of 26972646625 is 52664627962.

It is not a de Polignac number, because 26972646625 - 2⁷ = 26972646497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3476467 + ... + 3484216.

It is an arithmetic number, because the mean of its divisors is an integer number (2171733408).

Almost surely, 2^26972646625 is an apocalyptic number.

26972646625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26972646625 is a deficient number, since it is larger than the sum of its proper divisors (7775087903).

26972646625 is an equidigital number, since it uses as much as digits as its factorization.

26972646625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6960729 (or 6960719 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 55.

The spelling of 26972646625 in words is "twenty-six billion, nine hundred seventy-two million, six hundred forty-six thousand, six hundred twenty-five".