68452264520 has 64 divisors (see below), whose sum is σ = 157388728320. Its totient is φ = 26782292224.

The previous prime is 68452264501. The next prime is 68452264523. The reversal of 68452264520 is 2546225486.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (68452264523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3417254 + ... + 3437226.

It is an arithmetic number, because the mean of its divisors is an integer number (2459198880).

Almost surely, 2^68452264520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68452264520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78694364160).

68452264520 is an abundant number, since it is smaller than the sum of its proper divisors (88936463800).

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

68452264520 is a wasteful number, since it uses less digits than its factorization.

68452264520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21854 (or 21850 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 68452264520 in words is "sixty-eight billion, four hundred fifty-two million, two hundred sixty-four thousand, five hundred twenty".