2391453259 has 18 divisors (see below), whose sum is σ = 2729016780. Its totient is φ = 2088888048.

The previous prime is 2391453199. The next prime is 2391453271. The reversal of 2391453259 is 9523541932.

2391453259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2391453259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2391454259) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2770662 + ... + 2771524.

Almost surely, 2^2391453259 is an apocalyptic number.

2391453259 is a deficient number, since it is larger than the sum of its proper divisors (337563521).

2391453259 is an frugal number, since it uses more digits than its factorization.

2391453259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771 (or 895 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The square root of 2391453259 is about 48902.4872475828. The cubic root of 2391453259 is about 1337.2747126183.

The spelling of 2391453259 in words is "two billion, three hundred ninety-one million, four hundred fifty-three thousand, two hundred fifty-nine".