26108253381 has 16 divisors (see below), whose sum is σ = 41877900800. Its totient is φ = 14133791088.

The previous prime is 26108253377. The next prime is 26108253389. The reversal of 26108253381 is 18335280162.

It is not a de Polignac number, because 26108253381 - 2² = 26108253377 is a prime.

It is a super-2 number, since 2×26108253381² (a number of 22 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 (26108253389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32716711 + ... + 32717508.

It is an arithmetic number, because the mean of its divisors is an integer number (2617368800).

Almost surely, 2^26108253381 is an apocalyptic number.

26108253381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26108253381 is a deficient number, since it is larger than the sum of its proper divisors (15769647419).

26108253381 is a wasteful number, since it uses less digits than its factorization.

26108253381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65434248.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 26108253381 in words is "twenty-six billion, one hundred eight million, two hundred fifty-three thousand, three hundred eighty-one".