26765413081 has 16 divisors (see below), whose sum is σ = 30124657728. Its totient is φ = 23766277920.

The previous prime is 26765413067. The next prime is 26765413111. The reversal of 26765413081 is 18031456762.

It is not a de Polignac number, because 26765413081 - 2⁵ = 26765413049 is a prime.

It is a super-2 number, since 2×26765413081² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (26765413001) 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, 176596 + ... + 291061.

It is an arithmetic number, because the mean of its divisors is an integer number (1882791108).

Almost surely, 2^26765413081 is an apocalyptic number.

It is an amenable number.

26765413081 is a deficient number, since it is larger than the sum of its proper divisors (3359244647).

26765413081 is an equidigital number, since it uses as much as digits as its factorization.

26765413081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467733 (or 467711 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 26765413081 in words is "twenty-six billion, seven hundred sixty-five million, four hundred thirteen thousand, eighty-one".