2099542699 has 4 divisors (see below), whose sum is σ = 2099722680. Its totient is φ = 2099362720.

The previous prime is 2099542691. The next prime is 2099542703. The reversal of 2099542699 is 9962459902.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2099542699 - 2³ = 2099542691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2099542691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71182 + ... + 96259.

It is an arithmetic number, because the mean of its divisors is an integer number (524930670).

Almost surely, 2^2099542699 is an apocalyptic number.

2099542699 is a deficient number, since it is larger than the sum of its proper divisors (179981).

2099542699 is a wasteful number, since it uses less digits than its factorization.

2099542699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179980.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The square root of 2099542699 is about 45820.7671149229. The cubic root of 2099542699 is about 1280.4862042501.

The spelling of 2099542699 in words is "two billion, ninety-nine million, five hundred forty-two thousand, six hundred ninety-nine".