264386495880 has 512 divisors, whose sum is σ = 1004705856000. Its totient is φ = 61370265600.

The previous prime is 264386495827. The next prime is 264386495929. The reversal of 264386495880 is 88594683462.

264386495880 is a `hidden beast` number, since 2 + 6 + 4 + 3 + 8 + 6 + 49 + 588 + 0 = 666.

264386495880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17500330 + ... + 17515430.

It is an arithmetic number, because the mean of its divisors is an integer number (1962316125).

Almost surely, 2^264386495880 is an apocalyptic number.

264386495880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264386495880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502352928000).

264386495880 is an abundant number, since it is smaller than the sum of its proper divisors (740319360120).

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

264386495880 is a wasteful number, since it uses less digits than its factorization.

264386495880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15206 (or 15196 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 63.

The spelling of 264386495880 in words is "two hundred sixty-four billion, three hundred eighty-six million, four hundred ninety-five thousand, eight hundred eighty".