264003421590 has 24 divisors (see below), whose sum is σ = 686408896368. Its totient is φ = 70400912400.

The previous prime is 264003421589. The next prime is 264003421603. The reversal of 264003421590 is 95124300462.

It is a happy number.

264003421590 is a `hidden beast` number, since 2 + 6 + 40 + 0 + 3 + 4 + 21 + 590 = 666.

It is a super-2 number, since 2×264003421590² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1466685586 + ... + 1466685765.

It is an arithmetic number, because the mean of its divisors is an integer number (28600370682).

Almost surely, 2^264003421590 is an apocalyptic number.

264003421590 is an abundant number, since it is smaller than the sum of its proper divisors (422405474778).

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

264003421590 is a wasteful number, since it uses less digits than its factorization.

264003421590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933371364 (or 2933371361 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 264003421590 in words is "two hundred sixty-four billion, three million, four hundred twenty-one thousand, five hundred ninety".