26620265975 has 12 divisors (see below), whose sum is σ = 33301249536. Its totient is φ = 21107748480.

The previous prime is 26620265963. The next prime is 26620265981. The reversal of 26620265975 is 57956202662.

It is not a de Polignac number, because 26620265975 - 2²⁴ = 26603488759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4708727 + ... + 4714376.

It is an arithmetic number, because the mean of its divisors is an integer number (2775104128).

Almost surely, 2^26620265975 is an apocalyptic number.

26620265975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26620265975 is a deficient number, since it is larger than the sum of its proper divisors (6680983561).

26620265975 is a wasteful number, since it uses less digits than its factorization.

26620265975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9423226 (or 9423221 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 26620265975 in words is "twenty-six billion, six hundred twenty million, two hundred sixty-five thousand, nine hundred seventy-five".