26897617922 has 18 divisors (see below), whose sum is σ = 46936431747. Its totient is φ = 11526854724.

The previous prime is 26897617897. The next prime is 26897617951. The reversal of 26897617922 is 22971679862.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13448808961 + 13448808961 = 115969^2 + 115969^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=115969.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1615283 + ... + 1631849.

Almost surely, 2^26897617922 is an apocalyptic number.

26897617922 is a deficient number, since it is larger than the sum of its proper divisors (20038813825).

26897617922 is an frugal number, since it uses more digits than its factorization.

26897617922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33150 (or 16576 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 59.

The spelling of 26897617922 in words is "twenty-six billion, eight hundred ninety-seven million, six hundred seventeen thousand, nine hundred twenty-two".