26863424356625 has 32 divisors (see below), whose sum is σ = 34473288949632. Its totient is φ = 20884621665600.

The previous prime is 26863424356553. The next prime is 26863424356627. The reversal of 26863424356625 is 52665342436862.

It is a happy number.

It is not a de Polignac number, because 26863424356625 - 2¹⁰ = 26863424355601 is a prime.

It is a super-2 number, since 2×26863424356625² (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 (26863424356627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313202 + ... + 7336548.

It is an arithmetic number, because the mean of its divisors is an integer number (1077290279676).

Almost surely, 2^{26863424356625} is an apocalyptic number.

26863424356625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26863424356625 is a deficient number, since it is larger than the sum of its proper divisors (7609864593007).

26863424356625 is an equidigital number, since it uses as much as digits as its factorization.

26863424356625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024226 (or 7024216 counting only the distinct ones).

The product of its digits is 298598400, while the sum is 62.

The spelling of 26863424356625 in words is "twenty-six trillion, eight hundred sixty-three billion, four hundred twenty-four million, three hundred fifty-six thousand, six hundred twenty-five".