2081937399 has 8 divisors (see below), whose sum is σ = 2776770672. Its totient is φ = 1387531200.

The previous prime is 2081937359. The next prime is 2081937409. The reversal of 2081937399 is 9937391802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2081937399 - 2¹⁶ = 2081871863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081937329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95214 + ... + 115019.

It is an arithmetic number, because the mean of its divisors is an integer number (347096334).

Almost surely, 2^2081937399 is an apocalyptic number.

2081937399 is a deficient number, since it is larger than the sum of its proper divisors (694833273).

2081937399 is a wasteful number, since it uses less digits than its factorization.

2081937399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213537.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 2081937399 is about 45628.2522018979. The cubic root of 2081937399 is about 1276.8970655475.

The spelling of 2081937399 in words is "two billion, eighty-one million, nine hundred thirty-seven thousand, three hundred ninety-nine".