26402640126275 has 36 divisors (see below), whose sum is σ = 39489238879632. Its totient is φ = 17151790236480.

The previous prime is 26402640126257. The next prime is 26402640126277. The reversal of 26402640126275 is 57262104620462.

It is not a de Polignac number, because 26402640126275 - 2²⁰ = 26402639077699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26402640126277) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 208901132 + ... + 209027481.

It is an arithmetic number, because the mean of its divisors is an integer number (1096923302212).

Almost surely, 2^{26402640126275} is an apocalyptic number.

26402640126275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26402640126275 is a deficient number, since it is larger than the sum of its proper divisors (13086598753357).

26402640126275 is a wasteful number, since it uses less digits than its factorization.

26402640126275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417928668 (or 417928644 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 26402640126275 in words is "twenty-six trillion, four hundred two billion, six hundred forty million, one hundred twenty-six thousand, two hundred seventy-five".