26806609977 has 48 divisors (see below), whose sum is σ = 42257147904. Its totient is φ = 15068676000.

The previous prime is 26806609937. The next prime is 26806609979. The reversal of 26806609977 is 77990660862.

It is not a de Polignac number, because 26806609977 - 2²⁰ = 26805561401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26806609977.

It is not an unprimeable number, because it can be changed into a prime (26806609979) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5121952 + ... + 5127182.

It is an arithmetic number, because the mean of its divisors is an integer number (880357248).

Almost surely, 2^26806609977 is an apocalyptic number.

It is an amenable number.

26806609977 is a deficient number, since it is larger than the sum of its proper divisors (15450537927).

26806609977 is a wasteful number, since it uses less digits than its factorization.

26806609977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810 (or 5803 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 26806609977 in words is "twenty-six billion, eight hundred six million, six hundred nine thousand, nine hundred seventy-seven".