4630523891 has 4 divisors (see below), whose sum is σ = 5292027312. Its totient is φ = 3969020472.

The previous prime is 4630523879. The next prime is 4630523959. The reversal of 4630523891 is 1983250364.

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

It is a cyclic number.

It is not a de Polignac number, because 4630523891 - 2⁶ = 4630523827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4630523861) 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, 330751700 + ... + 330751713.

It is an arithmetic number, because the mean of its divisors is an integer number (1323006828).

Almost surely, 2^4630523891 is an apocalyptic number.

4630523891 is a deficient number, since it is larger than the sum of its proper divisors (661503421).

4630523891 is an equidigital number, since it uses as much as digits as its factorization.

4630523891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661503420.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 4630523891 is about 68047.9528788339. The cubic root of 4630523891 is about 1666.7739711224.

The spelling of 4630523891 in words is "four billion, six hundred thirty million, five hundred twenty-three thousand, eight hundred ninety-one".