52438431723 has 4 divisors (see below), whose sum is σ = 69917908968. Its totient is φ = 34958954480.

The previous prime is 52438431719. The next prime is 52438431737. The reversal of 52438431723 is 32713483425.

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 52438431723 - 2² = 52438431719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52438431223) 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, 8739738618 + ... + 8739738623.

It is an arithmetic number, because the mean of its divisors is an integer number (17479477242).

Almost surely, 2^52438431723 is an apocalyptic number.

52438431723 is a deficient number, since it is larger than the sum of its proper divisors (17479477245).

52438431723 is a wasteful number, since it uses less digits than its factorization.

52438431723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17479477244.

The product of its digits is 483840, while the sum is 42.

The spelling of 52438431723 in words is "fifty-two billion, four hundred thirty-eight million, four hundred thirty-one thousand, seven hundred twenty-three".