26326329664 has 28 divisors (see below), whose sum is σ = 52292707200. Its totient is φ = 13150214528.

The previous prime is 26326329661. The next prime is 26326329677. The reversal of 26326329664 is 46692362362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26326329661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136624 + ... + 267055.

Almost surely, 2^26326329664 is an apocalyptic number.

It is an amenable number.

26326329664 is a deficient number, since it is larger than the sum of its proper divisors (25966377536).

26326329664 is a wasteful number, since it uses less digits than its factorization.

26326329664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404710 (or 404700 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 49.

The spelling of 26326329664 in words is "twenty-six billion, three hundred twenty-six million, three hundred twenty-nine thousand, six hundred sixty-four".