264738651712680 has 64 divisors (see below), whose sum is σ = 794294757849600. Its totient is φ = 70589969104640.

The previous prime is 264738651712679. The next prime is 264738651712709. The reversal of 264738651712680 is 86217156837462.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108233691 + ... + 110652650.

It is an arithmetic number, because the mean of its divisors is an integer number (12410855591400).

Almost surely, 2^{264738651712680} is an apocalyptic number.

264738651712680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264738651712680 is an abundant number, since it is smaller than the sum of its proper divisors (529556106136920).

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

264738651712680 is a wasteful number, since it uses less digits than its factorization.

264738651712680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218896434 (or 218896430 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 66.

The spelling of 264738651712680 in words is "two hundred sixty-four trillion, seven hundred thirty-eight billion, six hundred fifty-one million, seven hundred twelve thousand, six hundred eighty".