26521121225249 has 16 divisors (see below), whose sum is σ = 30351890194560. Its totient is φ = 22700882198400.

The previous prime is 26521121225231. The next prime is 26521121225251. The reversal of 26521121225249 is 94252212112562.

It is not a de Polignac number, because 26521121225249 - 2⁸ = 26521121224993 is a prime.

It is a super-2 number, since 2×26521121225249² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26521121225299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14619197 + ... + 16332885.

It is an arithmetic number, because the mean of its divisors is an integer number (1896993137160).

Almost surely, 2^{26521121225249} is an apocalyptic number.

It is an amenable number.

26521121225249 is a deficient number, since it is larger than the sum of its proper divisors (3830768969311).

26521121225249 is a wasteful number, since it uses less digits than its factorization.

26521121225249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716760.

The product of its digits is 345600, while the sum is 44.

The spelling of 26521121225249 in words is "twenty-six trillion, five hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-five thousand, two hundred forty-nine".