26000917504 has 33 divisors (see below), whose sum is σ = 51986760367. Its totient is φ = 12997878784.

The previous prime is 26000917499. The next prime is 26000917507. The reversal of 26000917504 is 40571900062.

The square root of 26000917504 is 161248.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×26000917504² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26000917504.

It is not an unprimeable number, because it can be changed into a prime (26000917507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5157417 + ... + 5162455.

Almost surely, 2^26000917504 is an apocalyptic number.

26000917504 is the 161248-th square number.

It is an amenable number.

26000917504 is a deficient number, since it is larger than the sum of its proper divisors (25985842863).

26000917504 is an frugal number, since it uses more digits than its factorization.

26000917504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098 (or 5041 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 26000917504 in words is "twenty-six billion, nine hundred seventeen thousand, five hundred four".