26104645431 has 6 divisors (see below), whose sum is σ = 37706710080. Its totient is φ = 17403096948.

The previous prime is 26104645421. The next prime is 26104645499. The reversal of 26104645431 is 13454640162.

26104645431 is a `hidden beast` number, since 2 + 6 + 1 + 0 + 4 + 645 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 26104645431 - 2³⁰ = 25030903607 is a prime.

It is a super-2 number, since 2×26104645431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26104645421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1450258071 + ... + 1450258088.

It is an arithmetic number, because the mean of its divisors is an integer number (6284451680).

Almost surely, 2^26104645431 is an apocalyptic number.

26104645431 is a deficient number, since it is larger than the sum of its proper divisors (11602064649).

26104645431 is a wasteful number, since it uses less digits than its factorization.

26104645431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900516165 (or 2900516162 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 26104645431 in words is "twenty-six billion, one hundred four million, six hundred forty-five thousand, four hundred thirty-one".