2123799682 has 4 divisors (see below), whose sum is σ = 3185699526. Its totient is φ = 1061899840.

The previous prime is 2123799589. The next prime is 2123799697. The reversal of 2123799682 is 2869973212.

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

It can be written as a sum of positive squares in only one way, i.e., 1945603881 + 178195801 = 44109^2 + 13349^2 .

It is a super-2 number, since 2×2123799682² = 9021050178526602248, which contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530949919 + ... + 530949922.

Almost surely, 2^2123799682 is an apocalyptic number.

2123799682 is a deficient number, since it is larger than the sum of its proper divisors (1061899844).

2123799682 is a wasteful number, since it uses less digits than its factorization.

2123799682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061899843.

The product of its digits is 653184, while the sum is 49.

The square root of 2123799682 is about 46084.7011707790. The cubic root of 2123799682 is about 1285.3986826331.

The spelling of 2123799682 in words is "two billion, one hundred twenty-three million, seven hundred ninety-nine thousand, six hundred eighty-two".