26107178874431 has 4 divisors (see below), whose sum is σ = 26112284918832. Its totient is φ = 26102072830032.

The previous prime is 26107178874421. The next prime is 26107178874451. The reversal of 26107178874431 is 13447887170162.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26107178874431 is a prime.

It is a super-2 number, since 2×26107178874431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26107178874401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553014531 + ... + 2553024756.

It is an arithmetic number, because the mean of its divisors is an integer number (6528071229708).

Almost surely, 2^{26107178874431} is an apocalyptic number.

26107178874431 is a deficient number, since it is larger than the sum of its proper divisors (5106044401).

26107178874431 is an equidigital number, since it uses as much as digits as its factorization.

26107178874431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106044400.

The product of its (nonzero) digits is 12644352, while the sum is 59.

The spelling of 26107178874431 in words is "twenty-six trillion, one hundred seven billion, one hundred seventy-eight million, eight hundred seventy-four thousand, four hundred thirty-one".