26308774465 has 8 divisors (see below), whose sum is σ = 31578906240. Its totient is φ = 21041434992.

The previous prime is 26308774447. The next prime is 26308774487. The reversal of 26308774465 is 56447780362.

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 26308774465 - 2¹⁷ = 26308643393 is a prime.

It is a super-2 number, since 2×26308774465² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677289 + ... + 715078.

It is an arithmetic number, because the mean of its divisors is an integer number (3947363280).

Almost surely, 2^26308774465 is an apocalyptic number.

It is an amenable number.

26308774465 is a deficient number, since it is larger than the sum of its proper divisors (5270131775).

26308774465 is a wasteful number, since it uses less digits than its factorization.

26308774465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396151.

The product of its (nonzero) digits is 6773760, while the sum is 52.

The spelling of 26308774465 in words is "twenty-six billion, three hundred eight million, seven hundred seventy-four thousand, four hundred sixty-five".