5423905906 has 4 divisors (see below), whose sum is σ = 8135858862. Its totient is φ = 2711952952.

The previous prime is 5423905853. The next prime is 5423905909. The reversal of 5423905906 is 6095093245.

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

It can be written as a sum of positive squares in only one way, i.e., 4146200881 + 1277705025 = 64391^2 + 35745^2 .

It is not an unprimeable number, because it can be changed into a prime (5423905909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1355976475 + ... + 1355976478.

Almost surely, 2^5423905906 is an apocalyptic number.

5423905906 is a deficient number, since it is larger than the sum of its proper divisors (2711952956).

5423905906 is a wasteful number, since it uses less digits than its factorization.

5423905906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711952955.

The product of its (nonzero) digits is 291600, while the sum is 43.

The square root of 5423905906 is about 73647.1717447452. The cubic root of 5423905906 is about 1756.9957686565.

The spelling of 5423905906 in words is "five billion, four hundred twenty-three million, nine hundred five thousand, nine hundred six".