7421713543123 has 8 divisors (see below), whose sum is σ = 8163327294576. Its totient is φ = 6747012310720.

The previous prime is 7421713543117. The next prime is 7421713543133. The reversal of 7421713543123 is 3213453171247.

It is a happy number.

It is not a de Polignac number, because 7421713543123 - 2¹⁷ = 7421713412051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7421713543123.

It is not an unprimeable number, because it can be changed into a prime (7421713543133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2788020286 + ... + 2788022947.

It is an arithmetic number, because the mean of its divisors is an integer number (1020415911822).

Almost surely, 2^{7421713543123} is an apocalyptic number.

7421713543123 is a deficient number, since it is larger than the sum of its proper divisors (741613751453).

7421713543123 is an equidigital number, since it uses as much as digits as its factorization.

7421713543123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576043266 (or 5576043244 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The spelling of 7421713543123 in words is "seven trillion, four hundred twenty-one billion, seven hundred thirteen million, five hundred forty-three thousand, one hundred twenty-three".