4621690918 has 16 divisors (see below), whose sum is σ = 7487338320. Its totient is φ = 2126936736.

The previous prime is 4621690867. The next prime is 4621690939. The reversal of 4621690918 is 8190961264.

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 7 ways as a sum of consecutive naturals, for example, 247113 + ... + 265156.

It is an arithmetic number, because the mean of its divisors is an integer number (467958645).

Almost surely, 2^4621690918 is an apocalyptic number.

4621690918 is a deficient number, since it is larger than the sum of its proper divisors (2865647402).

4621690918 is a wasteful number, since it uses less digits than its factorization.

4621690918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512631.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 4621690918 is about 67983.0193357135. The cubic root of 4621690918 is about 1665.7134762318.

The spelling of 4621690918 in words is "four billion, six hundred twenty-one million, six hundred ninety thousand, nine hundred eighteen".