4642622064 has 120 divisors (see below), whose sum is σ = 13804652160. Its totient is φ = 1453745664.

The previous prime is 4642622057. The next prime is 4642622069. The reversal of 4642622064 is 4602262464.

4642622064 is a `hidden beast` number, since 4 + 6 + 426 + 220 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4642622069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139489 + ... + 169535.

It is an arithmetic number, because the mean of its divisors is an integer number (115038768).

Almost surely, 2^4642622064 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 4642622064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6902326080).

4642622064 is an abundant number, since it is smaller than the sum of its proper divisors (9162030096).

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

4642622064 is a wasteful number, since it uses less digits than its factorization.

4642622064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30127 (or 30118 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The square root of 4642622064 is about 68136.7893578792. The cubic root of 4642622064 is about 1668.2243025998.

The spelling of 4642622064 in words is "four billion, six hundred forty-two million, six hundred twenty-two thousand, sixty-four".