4688249991 has 16 divisors (see below), whose sum is σ = 6372259200. Its totient is φ = 3064932000.

The previous prime is 4688249989. The next prime is 4688250013. The reversal of 4688249991 is 1999428864.

It is not a de Polignac number, because 4688249991 - 2¹ = 4688249989 is a prime.

It is a super-2 number, since 2×4688249991² = 43959375956223000162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4688249921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351360 + ... + 364458.

It is an arithmetic number, because the mean of its divisors is an integer number (398266200).

Almost surely, 2^4688249991 is an apocalyptic number.

4688249991 is a deficient number, since it is larger than the sum of its proper divisors (1684009209).

4688249991 is a wasteful number, since it uses less digits than its factorization.

4688249991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15406.

The product of its digits is 8957952, while the sum is 60.

The square root of 4688249991 is about 68470.7966289279. The cubic root of 4688249991 is about 1673.6716271011.

The spelling of 4688249991 in words is "four billion, six hundred eighty-eight million, two hundred forty-nine thousand, nine hundred ninety-one".