4906639922 has 6 divisors (see below), whose sum is σ = 7360108479. Its totient is φ = 2453270430.

The previous prime is 4906639921. The next prime is 4906639931. The reversal of 4906639922 is 2299366094.

It can be written as a sum of positive squares in only one way, i.e., 2453319961 + 2453319961 = 49531^2 + 49531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=49531.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4906639921) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 74297 + ... + 123827.

Almost surely, 2^4906639922 is an apocalyptic number.

4906639922 is a deficient number, since it is larger than the sum of its proper divisors (2453468557).

4906639922 is an frugal number, since it uses more digits than its factorization.

4906639922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99064 (or 49533 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 50.

The square root of 4906639922 is about 70047.4119579018. The cubic root of 4906639922 is about 1699.2661102151.

Multiplying 4906639922 by its sum of digits (50), we get a square (245331996100 = 495310²).

It can be divided in two parts, 49066 and 39922, that added together give a palindrome (88988).

The spelling of 4906639922 in words is "four billion, nine hundred six million, six hundred thirty-nine thousand, nine hundred twenty-two".