26344221264 has 60 divisors (see below), whose sum is σ = 73850556000. Its totient is φ = 8766718272.

The previous prime is 26344221217. The next prime is 26344221269. The reversal of 26344221264 is 46212244362.

26344221264 is a `hidden beast` number, since 2 + 634 + 4 + 2 + 2 + 12 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26344221269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66454 + ... + 238965.

It is an arithmetic number, because the mean of its divisors is an integer number (1230842600).

Almost surely, 2^26344221264 is an apocalyptic number.

26344221264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26344221264 is an abundant number, since it is smaller than the sum of its proper divisors (47506334736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26344221264 is a wasteful number, since it uses less digits than its factorization.

26344221264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306032 (or 306023 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The spelling of 26344221264 in words is "twenty-six billion, three hundred forty-four million, two hundred twenty-one thousand, two hundred sixty-four".