7997123425 has 24 divisors (see below), whose sum is σ = 10601750016. Its totient is φ = 5962871040.

The previous prime is 7997123423. The next prime is 7997123443. The reversal of 7997123425 is 5243217997.

It is a happy number.

It is not a de Polignac number, because 7997123425 - 2¹ = 7997123423 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7997123423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47569 + ... + 135118.

It is an arithmetic number, because the mean of its divisors is an integer number (441739584).

Almost surely, 2^7997123425 is an apocalyptic number.

It is an amenable number.

7997123425 is a deficient number, since it is larger than the sum of its proper divisors (2604626591).

7997123425 is a wasteful number, since it uses less digits than its factorization.

7997123425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182817 (or 182812 counting only the distinct ones).

The product of its digits is 952560, while the sum is 49.

The square root of 7997123425 is about 89426.6371110979. The cubic root of 7997123425 is about 1999.7602566794.

The spelling of 7997123425 in words is "seven billion, nine hundred ninety-seven million, one hundred twenty-three thousand, four hundred twenty-five".