9912743425 has 12 divisors (see below), whose sum is σ = 13237325500. Its totient is φ = 7320179520.

The previous prime is 9912743413. The next prime is 9912743461. The reversal of 9912743425 is 5243472199.

It can be written as a sum of positive squares in 6 ways, for example, as 3594242304 + 6318501121 = 59952^2 + 79489^2 .

It is not a de Polignac number, because 9912743425 - 2¹⁹ = 9912219137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15250050 + ... + 15250699.

Almost surely, 2^9912743425 is an apocalyptic number.

It is an amenable number.

9912743425 is a deficient number, since it is larger than the sum of its proper divisors (3324582075).

9912743425 is a wasteful number, since it uses less digits than its factorization.

9912743425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30500772 (or 30500767 counting only the distinct ones).

The product of its digits is 544320, while the sum is 46.

The square root of 9912743425 is about 99562.7612363177. The cubic root of 9912743425 is about 2148.1500889366.

The spelling of 9912743425 in words is "nine billion, nine hundred twelve million, seven hundred forty-three thousand, four hundred twenty-five".