26644189456 has 40 divisors (see below), whose sum is σ = 53243627904. Its totient is φ = 12909513600.

The previous prime is 26644189367. The next prime is 26644189457. The reversal of 26644189456 is 65498144662.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26644189397 and 26644189406.

It is not an unprimeable number, because it can be changed into a prime (26644189457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99450 + ... + 251353.

Almost surely, 2^26644189456 is an apocalyptic number.

It is an amenable number.

26644189456 is a deficient number, since it is larger than the sum of its proper divisors (26599438448).

26644189456 is a wasteful number, since it uses less digits than its factorization.

26644189456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350959 (or 350953 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 55.

The spelling of 26644189456 in words is "twenty-six billion, six hundred forty-four million, one hundred eighty-nine thousand, four hundred fifty-six".