2691834872 has 16 divisors (see below), whose sum is σ = 5065029240. Its totient is φ = 1341160416.

The previous prime is 2691834853. The next prime is 2691834889. The reversal of 2691834872 is 2784381962.

It is a self number, because there is not a number n which added to its sum of digits gives 2691834872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592223 + ... + 596750.

Almost surely, 2^2691834872 is an apocalyptic number.

It is an amenable number.

2691834872 is a deficient number, since it is larger than the sum of its proper divisors (2373194368).

2691834872 is a wasteful number, since it uses less digits than its factorization.

2691834872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189262 (or 1189258 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 2691834872 is about 51882.8957557305. The cubic root of 2691834872 is about 1391.0715598927.

The spelling of 2691834872 in words is "two billion, six hundred ninety-one million, eight hundred thirty-four thousand, eight hundred seventy-two".