26789815081 has 8 divisors (see below), whose sum is σ = 26937404928. Its totient is φ = 26642550000.

The previous prime is 26789815079. The next prime is 26789815099. The reversal of 26789815081 is 18051898762.

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 26789815081 - 2¹ = 26789815079 is a prime.

It is a super-2 number, since 2×26789815081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26789815181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85176 + ... + 246646.

It is an arithmetic number, because the mean of its divisors is an integer number (3367175616).

Almost surely, 2^26789815081 is an apocalyptic number.

It is an amenable number.

26789815081 is a deficient number, since it is larger than the sum of its proper divisors (147589847).

26789815081 is a wasteful number, since it uses less digits than its factorization.

26789815081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162383.

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 26789815081 in words is "twenty-six billion, seven hundred eighty-nine million, eight hundred fifteen thousand, eighty-one".