26864262644 has 12 divisors (see below), whose sum is σ = 47022082464. Its totient is φ = 13429381944.

The previous prime is 26864262643. The next prime is 26864262653. The reversal of 26864262644 is 44626246862.

It is a junction number, because it is equal to n+sod(n) for n = 26864262592 and 26864262601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26864262643) 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 3 ways as a sum of consecutive naturals, for example, 665282 + ... + 704505.

It is an arithmetic number, because the mean of its divisors is an integer number (3918506872).

Almost surely, 2^26864262644 is an apocalyptic number.

It is an amenable number.

26864262644 is a deficient number, since it is larger than the sum of its proper divisors (20157819820).

26864262644 is a wasteful number, since it uses less digits than its factorization.

26864262644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374694 (or 1374692 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 50.

The spelling of 26864262644 in words is "twenty-six billion, eight hundred sixty-four million, two hundred sixty-two thousand, six hundred forty-four".