5042393664 has 224 divisors, whose sum is σ = 17612660736. Its totient is φ = 1232609280.

The previous prime is 5042393639. The next prime is 5042393677. The reversal of 5042393664 is 4663932405.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 241297 + ... + 261359.

Almost surely, 2^5042393664 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 5042393664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8806330368).

5042393664 is an abundant number, since it is smaller than the sum of its proper divisors (12570267072).

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

5042393664 is a wasteful number, since it uses less digits than its factorization.

5042393664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20113 (or 20103 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The square root of 5042393664 is about 71009.8138569592. The cubic root of 5042393664 is about 1714.7951616680.

The spelling of 5042393664 in words is "five billion, forty-two million, three hundred ninety-three thousand, six hundred sixty-four".