26080815831 has 8 divisors (see below), whose sum is σ = 39742195584. Its totient is φ = 14903323320.

The previous prime is 26080815821. The next prime is 26080815857. The reversal of 26080815831 is 13851808062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26080815831 - 2⁶ = 26080815767 is a prime.

It is a super-2 number, since 2×26080815831² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26080815821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620971785 + ... + 620971826.

It is an arithmetic number, because the mean of its divisors is an integer number (4967774448).

Almost surely, 2^26080815831 is an apocalyptic number.

26080815831 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26080815831 is a deficient number, since it is larger than the sum of its proper divisors (13661379753).

26080815831 is a wasteful number, since it uses less digits than its factorization.

26080815831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241943621.

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 26080815831 in words is "twenty-six billion, eighty million, eight hundred fifteen thousand, eight hundred thirty-one".