26109253451 has 4 divisors (see below), whose sum is σ = 26149608432. Its totient is φ = 26068898472.

The previous prime is 26109253433. The next prime is 26109253481. The reversal of 26109253451 is 15435290162.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15435290162 = 2 ⋅7717645081.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26109253451 is a prime.

It is a super-3 number, since 3×26109253451³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26109253481) 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, 20176520 + ... + 20177813.

It is an arithmetic number, because the mean of its divisors is an integer number (6537402108).

Almost surely, 2^26109253451 is an apocalyptic number.

26109253451 is a deficient number, since it is larger than the sum of its proper divisors (40354981).

26109253451 is an equidigital number, since it uses as much as digits as its factorization.

26109253451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40354980.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 26109253451 in words is "twenty-six billion, one hundred nine million, two hundred fifty-three thousand, four hundred fifty-one".