7980547423 has 4 divisors (see below), whose sum is σ = 7982141248. Its totient is φ = 7978953600.

The previous prime is 7980547417. The next prime is 7980547441. The reversal of 7980547423 is 3247450897.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3247450897 = 24007 ⋅135271.

It is a cyclic number.

It is not a de Polignac number, because 7980547423 - 2⁹ = 7980546911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7980547453) 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, 789378 + ... + 799423.

It is an arithmetic number, because the mean of its divisors is an integer number (1995535312).

Almost surely, 2^7980547423 is an apocalyptic number.

7980547423 is a deficient number, since it is larger than the sum of its proper divisors (1593825).

7980547423 is a wasteful number, since it uses less digits than its factorization.

7980547423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593824.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 7980547423 is about 89333.9097039864. The cubic root of 7980547423 is about 1998.3776362404.

The spelling of 7980547423 in words is "seven billion, nine hundred eighty million, five hundred forty-seven thousand, four hundred twenty-three".