4099947870 has 64 divisors (see below), whose sum is σ = 10474272000. Its totient is φ = 1024125696.

The previous prime is 4099947821. The next prime is 4099947893. The reversal of 4099947870 is 787499904.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 4099947870.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10321 + ... + 91139.

It is an arithmetic number, because the mean of its divisors is an integer number (163660500).

Almost surely, 2^4099947870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4099947870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5237136000).

4099947870 is an abundant number, since it is smaller than the sum of its proper divisors (6374324130).

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

4099947870 is a wasteful number, since it uses less digits than its factorization.

4099947870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80937.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 4099947870 is about 64030.8353061242. The cubic root of 4099947870 is about 1600.5138805095.

The spelling of 4099947870 in words is "four billion, ninety-nine million, nine hundred forty-seven thousand, eight hundred seventy".