26692885981 has 8 divisors (see below), whose sum is σ = 26798751584. Its totient is φ = 26587204560.

The previous prime is 26692885949. The next prime is 26692885991. The reversal of 26692885981 is 18958829662.

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

It is a cyclic number.

It is not a de Polignac number, because 26692885981 - 2⁵ = 26692885949 is a prime.

It is a super-2 number, since 2×26692885981² (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 (26692885991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248086 + ... + 339016.

It is an arithmetic number, because the mean of its divisors is an integer number (3349843948).

Almost surely, 2^26692885981 is an apocalyptic number.

It is an amenable number.

26692885981 is a deficient number, since it is larger than the sum of its proper divisors (105865603).

26692885981 is an equidigital number, since it uses as much as digits as its factorization.

26692885981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92091.

The product of its digits is 29859840, while the sum is 64.

It can be divided in two parts, 26692 and 885981, that added together give a cube (912673 = 97³).

The spelling of 26692885981 in words is "twenty-six billion, six hundred ninety-two million, eight hundred eighty-five thousand, nine hundred eighty-one".