26023681569 has 64 divisors (see below), whose sum is σ = 38384640000. Its totient is φ = 15620843520.

The previous prime is 26023681561. The next prime is 26023681603. The reversal of 26023681569 is 96518632062.

It is not a de Polignac number, because 26023681569 - 2³ = 26023681561 is a prime.

It is a super-2 number, since 2×26023681569² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26023681561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25537942 + ... + 25538960.

It is an arithmetic number, because the mean of its divisors is an integer number (599760000).

Almost surely, 2^26023681569 is an apocalyptic number.

It is an amenable number.

26023681569 is a deficient number, since it is larger than the sum of its proper divisors (12360958431).

26023681569 is a wasteful number, since it uses less digits than its factorization.

26023681569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 26023681569 in words is "twenty-six billion, twenty-three million, six hundred eighty-one thousand, five hundred sixty-nine".