4581745923 has 8 divisors (see below), whose sum is σ = 6131049808. Its totient is φ = 3043469664.

The previous prime is 4581745919. The next prime is 4581745991. The reversal of 4581745923 is 3295471854.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4581745923 - 2² = 4581745919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4581745913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2755936 + ... + 2757597.

It is an arithmetic number, because the mean of its divisors is an integer number (766381226).

Almost surely, 2^4581745923 is an apocalyptic number.

4581745923 is a deficient number, since it is larger than the sum of its proper divisors (1549303885).

4581745923 is a wasteful number, since it uses less digits than its factorization.

4581745923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513813.

The product of its digits is 1209600, while the sum is 48.

The square root of 4581745923 is about 67688.5952210563. The cubic root of 4581745923 is about 1660.9006970313.

The spelling of 4581745923 in words is "four billion, five hundred eighty-one million, seven hundred forty-five thousand, nine hundred twenty-three".