2345506891 has 24 divisors (see below), whose sum is σ = 2957484960. Its totient is φ = 1820722176.

The previous prime is 2345506883. The next prime is 2345506907. The reversal of 2345506891 is 1986055432.

2345506891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2345506891 - 2³ = 2345506883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2345506831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43995 + ... + 81403.

It is an arithmetic number, because the mean of its divisors is an integer number (123228540).

Almost surely, 2^2345506891 is an apocalyptic number.

2345506891 is a deficient number, since it is larger than the sum of its proper divisors (611978069).

2345506891 is a wasteful number, since it uses less digits than its factorization.

2345506891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37495 (or 37482 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 2345506891 is about 48430.4335206696. The cubic root of 2345506891 is about 1328.6550352954.

The spelling of 2345506891 in words is "two billion, three hundred forty-five million, five hundred six thousand, eight hundred ninety-one".