264693181728 has 192 divisors, whose sum is σ = 724367992320. Its totient is φ = 84563361792.

The previous prime is 264693181717. The next prime is 264693181733. The reversal of 264693181728 is 827181396462.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241287676 + ... + 241288772.

It is an arithmetic number, because the mean of its divisors is an integer number (3772749960).

Almost surely, 2^264693181728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264693181728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362183996160).

264693181728 is an abundant number, since it is smaller than the sum of its proper divisors (459674810592).

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

264693181728 is a wasteful number, since it uses less digits than its factorization.

264693181728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 2211 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The spelling of 264693181728 in words is "two hundred sixty-four billion, six hundred ninety-three million, one hundred eighty-one thousand, seven hundred twenty-eight".