64822529772 has 384 divisors, whose sum is σ = 227756390400. Its totient is φ = 15396480000.

The previous prime is 64822529771. The next prime is 64822529773. The reversal of 64822529772 is 27792522846.

64822529772 is a `hidden beast` number, since 6 + 48 + 2 + 2 + 529 + 7 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (64822529771) and next prime (64822529773).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (64822529771) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11781022 + ... + 11786522.

It is an arithmetic number, because the mean of its divisors is an integer number (593115600).

Almost surely, 2^64822529772 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 64822529772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113878195200).

64822529772 is an abundant number, since it is smaller than the sum of its proper divisors (162933860628).

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

64822529772 is a wasteful number, since it uses less digits than its factorization.

64822529772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5654 (or 5646 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 64822529772 in words is "sixty-four billion, eight hundred twenty-two million, five hundred twenty-nine thousand, seven hundred seventy-two".