264426686220 has 24 divisors (see below), whose sum is σ = 740394721584. Its totient is φ = 70513782976.

The previous prime is 264426686191. The next prime is 264426686273. The reversal of 264426686220 is 22686624462.

It is a self number, because there is not a number n which added to its sum of digits gives 264426686220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203555659 + ... + 2203555778.

It is an arithmetic number, because the mean of its divisors is an integer number (30849780066).

Almost surely, 2^264426686220 is an apocalyptic number.

264426686220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264426686220 is an abundant number, since it is smaller than the sum of its proper divisors (475968035364).

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

264426686220 is a wasteful number, since it uses less digits than its factorization.

264426686220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407111449 (or 4407111447 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 48.

The spelling of 264426686220 in words is "two hundred sixty-four billion, four hundred twenty-six million, six hundred eighty-six thousand, two hundred twenty".