264536453460 has 144 divisors (see below), whose sum is σ = 763781800320. Its totient is φ = 68404988160.

The previous prime is 264536453443. The next prime is 264536453539. The reversal of 264536453460 is 64354635462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14437705 + ... + 14456015.

It is an arithmetic number, because the mean of its divisors is an integer number (5304040280).

Almost surely, 2^264536453460 is an apocalyptic number.

264536453460 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 264536453460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381890900160).

264536453460 is an abundant number, since it is smaller than the sum of its proper divisors (499245346860).

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

264536453460 is a wasteful number, since it uses less digits than its factorization.

264536453460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18526 (or 18477 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 48.

The spelling of 264536453460 in words is "two hundred sixty-four billion, five hundred thirty-six million, four hundred fifty-three thousand, four hundred sixty".