5134318640 has 80 divisors (see below), whose sum is σ = 13156970400. Its totient is φ = 1847746560.

The previous prime is 5134318639. The next prime is 5134318667. The reversal of 5134318640 is 468134315.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×5134318640² = 52722455794102899200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5134318640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55286 + ... + 115434.

It is an arithmetic number, because the mean of its divisors is an integer number (164462130).

Almost surely, 2^5134318640 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 5134318640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6578485200).

5134318640 is an abundant number, since it is smaller than the sum of its proper divisors (8022651760).

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

5134318640 is a wasteful number, since it uses less digits than its factorization.

5134318640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60270 (or 60264 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 5134318640 is about 71654.1599629777. The cubic root of 5134318640 is about 1725.1529531811.

The spelling of 5134318640 in words is "five billion, one hundred thirty-four million, three hundred eighteen thousand, six hundred forty".