2381399999 has 8 divisors (see below), whose sum is σ = 2598704640. Its totient is φ = 2164231000.

The previous prime is 2381399959. The next prime is 2381400019. The reversal of 2381399999 is 9999931832.

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

It is a cyclic number.

It is not a de Polignac number, because 2381399999 - 2⁸ = 2381399743 is a prime.

It is a Duffinian number.

2381399999 is a modest number, since divided by 99999 gives 23813 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381399939) 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, 4724 + ... + 69174.

It is an arithmetic number, because the mean of its divisors is an integer number (324838080).

Almost surely, 2^2381399999 is an apocalyptic number.

2381399999 is a deficient number, since it is larger than the sum of its proper divisors (217304641).

2381399999 is a wasteful number, since it uses less digits than its factorization.

2381399999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67821.

The product of its digits is 8503056, while the sum is 62.

The square root of 2381399999 is about 48799.5901519675. The cubic root of 2381399999 is about 1335.3981893280.

The spelling of 2381399999 in words is "two billion, three hundred eighty-one million, three hundred ninety-nine thousand, nine hundred ninety-nine".