4727999640 has 256 divisors, whose sum is σ = 17864985600. Its totient is φ = 974260224.

The previous prime is 4727999629. The next prime is 4727999641. The reversal of 4727999640 is 469997274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4727999641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 464526 + ... + 474594.

It is an arithmetic number, because the mean of its divisors is an integer number (69785100).

Almost surely, 2^4727999640 is an apocalyptic number.

4727999640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4727999640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8932492800).

4727999640 is an abundant number, since it is smaller than the sum of its proper divisors (13136985960).

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

4727999640 is a wasteful number, since it uses less digits than its factorization.

4727999640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146 (or 10142 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 57.

The square root of 4727999640 is about 68760.4511329005. The cubic root of 4727999640 is about 1678.3884347348.

The spelling of 4727999640 in words is "four billion, seven hundred twenty-seven million, nine hundred ninety-nine thousand, six hundred forty".