4638972099 has 16 divisors (see below), whose sum is σ = 6290279424. Its totient is φ = 3040430400.

The previous prime is 4638972083. The next prime is 4638972161. The reversal of 4638972099 is 9902798364.

4638972099 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 68110²-1.

It is not a de Polignac number, because 4638972099 - 2⁴ = 4638972083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4638972059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34054 + ... + 102164.

It is an arithmetic number, because the mean of its divisors is an integer number (393142464).

Almost surely, 2^4638972099 is an apocalyptic number.

4638972099 is a deficient number, since it is larger than the sum of its proper divisors (1651307325).

4638972099 is a wasteful number, since it uses less digits than its factorization.

4638972099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68498.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The square root of 4638972099 is about 68109.9999926589. Note that the first 5 decimals coincide. The cubic root of 4638972099 is about 1667.7870097212.

The spelling of 4638972099 in words is "four billion, six hundred thirty-eight million, nine hundred seventy-two thousand, ninety-nine".