5423899623 has 32 divisors (see below), whose sum is σ = 7767936000. Its totient is φ = 3354379776.

The previous prime is 5423899601. The next prime is 5423899631. The reversal of 5423899623 is 3269983245.

It is a happy number.

It is not a de Polignac number, because 5423899623 - 2²⁹ = 4887028711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5423899673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1103790 + ... + 1108692.

It is an arithmetic number, because the mean of its divisors is an integer number (242748000).

Almost surely, 2^5423899623 is an apocalyptic number.

5423899623 is a deficient number, since it is larger than the sum of its proper divisors (2344036377).

5423899623 is a wasteful number, since it uses less digits than its factorization.

5423899623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231.

The product of its digits is 2799360, while the sum is 51.

The square root of 5423899623 is about 73647.1290886481. The cubic root of 5423899623 is about 1756.9950902273.

The spelling of 5423899623 in words is "five billion, four hundred twenty-three million, eight hundred ninety-nine thousand, six hundred twenty-three".