26264415969 has 45 divisors (see below), whose sum is σ = 43151882851. Its totient is φ = 15908104080.

The previous prime is 26264415949. The next prime is 26264415973. The reversal of 26264415969 is 96951446262.

The square root of 26264415969 is 162063.

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

26264415969 is a `hidden beast` number, since 2 + 6 + 2 + 6 + 4 + 41 + 596 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 796086225 + 25468329744 = 28215^2 + 159588^2 .

It is not a de Polignac number, because 26264415969 - 2⁵ = 26264415937 is a prime.

It is a super-2 number, since 2×26264415969² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26264415929) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 16043419 + ... + 16045055.

Almost surely, 2^26264415969 is an apocalyptic number.

26264415969 is the 162063-rd square number.

26264415969 is the 81032-nd centered octagonal number.

It is an amenable number.

26264415969 is a deficient number, since it is larger than the sum of its proper divisors (16887466882).

26264415969 is an frugal number, since it uses more digits than its factorization.

26264415969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3308 (or 1651 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 26264415969 in words is "twenty-six billion, two hundred sixty-four million, four hundred fifteen thousand, nine hundred sixty-nine".