26638097892 has 24 divisors (see below), whose sum is σ = 71034927936. Its totient is φ = 7610885088.

The previous prime is 26638097881. The next prime is 26638097897. The reversal of 26638097892 is 29879083662.

It is not an unprimeable number, because it can be changed into a prime (26638097897) 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, 158560023 + ... + 158560190.

It is an arithmetic number, because the mean of its divisors is an integer number (2959788664).

Almost surely, 2^26638097892 is an apocalyptic number.

It is an amenable number.

26638097892 is an abundant number, since it is smaller than the sum of its proper divisors (44396830044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26638097892 is a wasteful number, since it uses less digits than its factorization.

26638097892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317120227 (or 317120225 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 26638097892 in words is "twenty-six billion, six hundred thirty-eight million, ninety-seven thousand, eight hundred ninety-two".