623722423253671 has 4 divisors (see below), whose sum is σ = 712825626575632. Its totient is φ = 534619219931712.

The previous prime is 623722423253659. The next prime is 623722423253687. The reversal of 623722423253671 is 176352324227326.

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 623722423253671 - 2⁷ = 623722423253543 is a prime.

It is a super-2 number, since 2×623722423253671² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623722423257671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44551601660970 + ... + 44551601660983.

It is an arithmetic number, because the mean of its divisors is an integer number (178206406643908).

Almost surely, 2^{623722423253671} is an apocalyptic number.

623722423253671 is a deficient number, since it is larger than the sum of its proper divisors (89103203321961).

623722423253671 is an equidigital number, since it uses as much as digits as its factorization.

623722423253671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89103203321960.

The product of its digits is 30481920, while the sum is 55.

The spelling of 623722423253671 in words is "six hundred twenty-three trillion, seven hundred twenty-two billion, four hundred twenty-three million, two hundred fifty-three thousand, six hundred seventy-one".