2345889999 has 4 divisors (see below), whose sum is σ = 3127853336. Its totient is φ = 1563926664.

The previous prime is 2345889977. The next prime is 2345890013. The reversal of 2345889999 is 9999885432.

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

It is not a de Polignac number, because 2345889999 - 2¹⁵ = 2345857231 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2345889919) 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, 390981664 + ... + 390981669.

It is an arithmetic number, because the mean of its divisors is an integer number (781963334).

Almost surely, 2^2345889999 is an apocalyptic number.

2345889999 is a deficient number, since it is larger than the sum of its proper divisors (781963337).

2345889999 is an equidigital number, since it uses as much as digits as its factorization.

2345889999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781963336.

The product of its digits is 50388480, while the sum is 66.

The square root of 2345889999 is about 48434.3885994239. The cubic root of 2345889999 is about 1328.7273708552.

The spelling of 2345889999 in words is "two billion, three hundred forty-five million, eight hundred eighty-nine thousand, nine hundred ninety-nine".