4555642518 has 96 divisors (see below), whose sum is σ = 11438668800. Its totient is φ = 1283515200.

The previous prime is 4555642489. The next prime is 4555642547. The reversal of 4555642518 is 8152465554.

4555642518 is a `hidden beast` number, since 4 + 5 + 556 + 42 + 51 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (4555642489) and next prime (4555642547).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2834071 + ... + 2835677.

It is an arithmetic number, because the mean of its divisors is an integer number (119152800).

Almost surely, 2^4555642518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4555642518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5719334400).

4555642518 is an abundant number, since it is smaller than the sum of its proper divisors (6883026282).

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

4555642518 is a wasteful number, since it uses less digits than its factorization.

4555642518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922 (or 1919 counting only the distinct ones).

The product of its digits is 960000, while the sum is 45.

The square root of 4555642518 is about 67495.4999833322. The cubic root of 4555642518 is about 1657.7404926666.

The spelling of 4555642518 in words is "four billion, five hundred fifty-five million, six hundred forty-two thousand, five hundred eighteen".