4505919990 has 64 divisors (see below), whose sum is σ = 12704815872. Its totient is φ = 1008316800.

The previous prime is 4505919983. The next prime is 4505920007. The reversal of 4505919990 is 999195054.

It is a happy number.

It is a congruent number.

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, 520876 + ... + 529455.

It is an arithmetic number, because the mean of its divisors is an integer number (198512748).

Almost surely, 2^4505919990 is an apocalyptic number.

4505919990 is an abundant number, since it is smaller than the sum of its proper divisors (8198895882).

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

4505919990 is a wasteful number, since it uses less digits than its factorization.

4505919990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050365.

The product of its (nonzero) digits is 656100, while the sum is 51.

The square root of 4505919990 is about 67126.1498225543. The cubic root of 4505919990 is about 1651.6872841022.

The spelling of 4505919990 in words is "four billion, five hundred five million, nine hundred nineteen thousand, nine hundred ninety".