4501815642 has 24 divisors (see below), whose sum is σ = 9778518516. Its totient is φ = 1496822976.

The previous prime is 4501815623. The next prime is 4501815671. The reversal of 4501815642 is 2465181054.

It is a happy number.

4501815642 is a `hidden beast` number, since 4 + 5 + 0 + 1 + 8 + 1 + 5 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4500933921 + 881721 = 67089^2 + 939^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4501815597 and 4501815606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307843 + ... + 322134.

Almost surely, 2^4501815642 is an apocalyptic number.

4501815642 is an abundant number, since it is smaller than the sum of its proper divisors (5276702874).

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

4501815642 is a wasteful number, since it uses less digits than its factorization.

4501815642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630382 (or 630379 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 4501815642 is about 67095.5709566585. The cubic root of 4501815642 is about 1651.1856359910.

Adding to 4501815642 its reverse (2465181054), we get a palindrome (6966996696).

The spelling of 4501815642 in words is "four billion, five hundred one million, eight hundred fifteen thousand, six hundred forty-two".