26751656065 has 16 divisors (see below), whose sum is σ = 32382161856. Its totient is φ = 21214897600.

The previous prime is 26751656027. The next prime is 26751656123. The reversal of 26751656065 is 56065615762.

It is not a de Polignac number, because 26751656065 - 2⁷ = 26751655937 is a prime.

It is a super-2 number, since 2×26751656065² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594654 + ... + 638056.

It is an arithmetic number, because the mean of its divisors is an integer number (2023885116).

Almost surely, 2^26751656065 is an apocalyptic number.

It is an amenable number.

26751656065 is a deficient number, since it is larger than the sum of its proper divisors (5630505791).

26751656065 is a wasteful number, since it uses less digits than its factorization.

26751656065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44480.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 26751656065 in words is "twenty-six billion, seven hundred fifty-one million, six hundred fifty-six thousand, sixty-five".