26261720676 has 36 divisors (see below), whose sum is σ = 67224102400. Its totient is φ = 8643097008.

The previous prime is 26261720669. The next prime is 26261720699. The reversal of 26261720676 is 67602716262.

26261720676 is a `hidden beast` number, since 2 + 6 + 2 + 617 + 20 + 6 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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, 4614196 + ... + 4619883.

Almost surely, 2^26261720676 is an apocalyptic number.

It is an amenable number.

26261720676 is an abundant number, since it is smaller than the sum of its proper divisors (40962381724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26261720676 is a wasteful number, since it uses less digits than its factorization.

26261720676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9234168 (or 9234163 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 26261720676 in words is "twenty-six billion, two hundred sixty-one million, seven hundred twenty thousand, six hundred seventy-six".