642465310004 has 96 divisors (see below), whose sum is σ = 1360683878400. Its totient is φ = 259491703680.

The previous prime is 642465310001. The next prime is 642465310141. The reversal of 642465310004 is 400013564246.

642465310004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642465310001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12539519 + ... + 12590649.

It is an arithmetic number, because the mean of its divisors is an integer number (14173790400).

Almost surely, 2^642465310004 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 642465310004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (680341939200).

642465310004 is an abundant number, since it is smaller than the sum of its proper divisors (718218568396).

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

642465310004 is a wasteful number, since it uses less digits than its factorization.

642465310004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51453 (or 51451 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 642465310004 in words is "six hundred forty-two billion, four hundred sixty-five million, three hundred ten thousand, four".