7421717331423 has 48 divisors (see below), whose sum is σ = 10923309985536. Its totient is φ = 4854694521600.

The previous prime is 7421717331403. The next prime is 7421717331503. The reversal of 7421717331423 is 3241337171247.

7421717331423 is a `hidden beast` number, since 7 + 4 + 21 + 7 + 173 + 31 + 423 = 666.

7421717331423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7421717331423 - 2³² = 7417422364127 is a prime.

It is a super-3 number, since 3×7421717331423³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421717331403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 477980086 + ... + 477995612.

It is an arithmetic number, because the mean of its divisors is an integer number (227568958032).

Almost surely, 2^{7421717331423} is an apocalyptic number.

7421717331423 is a deficient number, since it is larger than the sum of its proper divisors (3501592654113).

7421717331423 is a wasteful number, since it uses less digits than its factorization.

7421717331423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18684 (or 18681 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The spelling of 7421717331423 in words is "seven trillion, four hundred twenty-one billion, seven hundred seventeen million, three hundred thirty-one thousand, four hundred twenty-three".