4050091913 has 12 divisors (see below), whose sum is σ = 4722236820. Its totient is φ = 3463471872.

The previous prime is 4050091897. The next prime is 4050091921. The reversal of 4050091913 is 3191900504.

It can be written as a sum of positive squares in 2 ways, for example, as 200137609 + 3849954304 = 14147^2 + 62048^2 .

It is not a de Polignac number, because 4050091913 - 2⁴ = 4050091897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4050091913.

It is not an unprimeable number, because it can be changed into a prime (4050091313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74228 + ... + 116661.

It is an arithmetic number, because the mean of its divisors is an integer number (393519735).

Almost surely, 2^4050091913 is an apocalyptic number.

It is an amenable number.

4050091913 is a deficient number, since it is larger than the sum of its proper divisors (672144907).

4050091913 is a wasteful number, since it uses less digits than its factorization.

4050091913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191336 (or 191329 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 4050091913 is about 63640.3324394208. The cubic root of 4050091913 is about 1593.9999119712. Note that the first 4 decimals are identical.

The spelling of 4050091913 in words is "four billion, fifty million, ninety-one thousand, nine hundred thirteen".