26921794956 has 48 divisors (see below), whose sum is σ = 73318941696. Its totient is φ = 7528281984.

The previous prime is 26921794919. The next prime is 26921794967. The reversal of 26921794956 is 65949712962.

It is a self number, because there is not a number n which added to its sum of digits gives 26921794956.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3405601 + ... + 3413496.

It is an arithmetic number, because the mean of its divisors is an integer number (1527477952).

Almost surely, 2^26921794956 is an apocalyptic number.

It is an amenable number.

26921794956 is an abundant number, since it is smaller than the sum of its proper divisors (46397146740).

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

26921794956 is a wasteful number, since it uses less digits than its factorization.

26921794956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6819158 (or 6819156 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 60.

The spelling of 26921794956 in words is "twenty-six billion, nine hundred twenty-one million, seven hundred ninety-four thousand, nine hundred fifty-six".