26849444164 has 9 divisors (see below), whose sum is σ = 46987100797. Its totient is φ = 13424558224.

The previous prime is 26849444137. The next prime is 26849444221. The reversal of 26849444164 is 46144494862.

It is a happy number.

The square root of 26849444164 is 163858.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5812842564 + 21036601600 = 76242^2 + 145040^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 286752 + ... + 368680.

Almost surely, 2^26849444164 is an apocalyptic number.

26849444164 is the 163858-th square number.

It is an amenable number.

26849444164 is a deficient number, since it is larger than the sum of its proper divisors (20137656633).

26849444164 is an frugal number, since it uses more digits than its factorization.

26849444164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163862 (or 81931 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 52.

The spelling of 26849444164 in words is "twenty-six billion, eight hundred forty-nine million, four hundred forty-four thousand, one hundred sixty-four".