26542639275 has 24 divisors (see below), whose sum is σ = 43894482240. Its totient is φ = 14152638240.

The previous prime is 26542639261. The next prime is 26542639307. The reversal of 26542639275 is 57293624562.

It is not a de Polignac number, because 26542639275 - 2¹¹ = 26542637227 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284644 + ... + 366206.

It is an arithmetic number, because the mean of its divisors is an integer number (1828936760).

Almost surely, 2^26542639275 is an apocalyptic number.

26542639275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26542639275 is a deficient number, since it is larger than the sum of its proper divisors (17351842965).

26542639275 is a wasteful number, since it uses less digits than its factorization.

26542639275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85915 (or 85910 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 51.

The spelling of 26542639275 in words is "twenty-six billion, five hundred forty-two million, six hundred thirty-nine thousand, two hundred seventy-five".