264650809240 has 64 divisors (see below), whose sum is σ = 628441804800. Its totient is φ = 100026767232.

The previous prime is 264650809219. The next prime is 264650809253. The reversal of 264650809240 is 42908056462.

It is a congruent number.

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, 163522 + ... + 745681.

It is an arithmetic number, because the mean of its divisors is an integer number (9819403200).

Almost surely, 2^264650809240 is an apocalyptic number.

264650809240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264650809240 is an abundant number, since it is smaller than the sum of its proper divisors (363790995560).

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

264650809240 is a wasteful number, since it uses less digits than its factorization.

264650809240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909616 (or 909612 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 264650809240 in words is "two hundred sixty-four billion, six hundred fifty million, eight hundred nine thousand, two hundred forty".