26842364644 has 12 divisors (see below), whose sum is σ = 47016503100. Its totient is φ = 13409078048.

The previous prime is 26842364623. The next prime is 26842364669. The reversal of 26842364644 is 44646324862.

It can be written as a sum of positive squares in 2 ways, for example, as 7312302144 + 19530062500 = 85512^2 + 139750^2 .

It is a super-4 number, since 4×26842364644⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3021079 + ... + 3029950.

It is an arithmetic number, because the mean of its divisors is an integer number (3918041925).

Almost surely, 2^26842364644 is an apocalyptic number.

It is an amenable number.

26842364644 is a deficient number, since it is larger than the sum of its proper divisors (20174138456).

26842364644 is a wasteful number, since it uses less digits than its factorization.

26842364644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6052142 (or 6052140 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 49.

The spelling of 26842364644 in words is "twenty-six billion, eight hundred forty-two million, three hundred sixty-four thousand, six hundred forty-four".