7644407423 has 2 divisors, whose sum is σ = 7644407424. Its totient is φ = 7644407422.

The previous prime is 7644407359. The next prime is 7644407447. The reversal of 7644407423 is 3247044467.

It is a strong prime.

It is an emirp because it is prime and its reverse (3247044467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7644407423 - 2⁶ = 7644407359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7644107423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3822203711 + 3822203712.

It is an arithmetic number, because the mean of its divisors is an integer number (3822203712).

Almost surely, 2^7644407423 is an apocalyptic number.

7644407423 is a deficient number, since it is larger than the sum of its proper divisors (1).

7644407423 is an equidigital number, since it uses as much as digits as its factorization.

7644407423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 41.

The square root of 7644407423 is about 87432.3019427031. The cubic root of 7644407423 is about 1969.9170623951.

The spelling of 7644407423 in words is "seven billion, six hundred forty-four million, four hundred seven thousand, four hundred twenty-three".