26677313261 has 4 divisors (see below), whose sum is σ = 28081382400. Its totient is φ = 25273244124.

The previous prime is 26677313239. The next prime is 26677313281. The reversal of 26677313261 is 16231377662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26677313261 - 2⁶ = 26677313197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26677313281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702034541 + ... + 702034578.

It is an arithmetic number, because the mean of its divisors is an integer number (7020345600).

Almost surely, 2^26677313261 is an apocalyptic number.

It is an amenable number.

26677313261 is a deficient number, since it is larger than the sum of its proper divisors (1404069139).

26677313261 is a wasteful number, since it uses less digits than its factorization.

26677313261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404069138.

The product of its digits is 381024, while the sum is 44.

The spelling of 26677313261 in words is "twenty-six billion, six hundred seventy-seven million, three hundred thirteen thousand, two hundred sixty-one".