26364772865 has 8 divisors (see below), whose sum is σ = 31652812800. Its totient is φ = 21081761392.

The previous prime is 26364772843. The next prime is 26364772897. The reversal of 26364772865 is 56827746362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26364772865 - 2²⁸ = 26096337409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26364772865.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245569 + ... + 1266558.

It is an arithmetic number, because the mean of its divisors is an integer number (3956601600).

Almost surely, 2^26364772865 is an apocalyptic number.

It is an amenable number.

26364772865 is a deficient number, since it is larger than the sum of its proper divisors (5288039935).

26364772865 is a wasteful number, since it uses less digits than its factorization.

26364772865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514231.

The product of its digits is 20321280, while the sum is 56.

The spelling of 26364772865 in words is "twenty-six billion, three hundred sixty-four million, seven hundred seventy-two thousand, eight hundred sixty-five".