4190981509 has 16 divisors (see below), whose sum is σ = 4953904704. Its totient is φ = 3495312000.

The previous prime is 4190981467. The next prime is 4190981513. The reversal of 4190981509 is 9051890914.

It is a cyclic number.

It is not a de Polignac number, because 4190981509 - 2²⁹ = 3654110597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4190981549) 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, 66592 + ... + 113209.

It is an arithmetic number, because the mean of its divisors is an integer number (309619044).

Almost surely, 2^4190981509 is an apocalyptic number.

It is an amenable number.

4190981509 is a deficient number, since it is larger than the sum of its proper divisors (762923195).

4190981509 is a wasteful number, since it uses less digits than its factorization.

4190981509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179988.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 4190981509 is about 64737.7904241410. The cubic root of 4190981509 is about 1612.2730016698.

The spelling of 4190981509 in words is "four billion, one hundred ninety million, nine hundred eighty-one thousand, five hundred nine".