2385541891 has 2 divisors, whose sum is σ = 2385541892. Its totient is φ = 2385541890.

The previous prime is 2385541861. The next prime is 2385541897. The reversal of 2385541891 is 1981455832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2385541891 - 2⁵ = 2385541859 is a prime.

It is a super-2 number, since 2×2385541891² = 11381620227431711762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2385541897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1192770945 + 1192770946.

It is an arithmetic number, because the mean of its divisors is an integer number (1192770946).

Almost surely, 2^2385541891 is an apocalyptic number.

2385541891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2385541891 is an equidigital number, since it uses as much as digits as its factorization.

2385541891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 46.

The square root of 2385541891 is about 48842.0094897825. The cubic root of 2385541891 is about 1336.1719458719.

The spelling of 2385541891 in words is "two billion, three hundred eighty-five million, five hundred forty-one thousand, eight hundred ninety-one".