7425429209 has 8 divisors (see below), whose sum is σ = 8110770528. Its totient is φ = 6741804960.

The previous prime is 7425429203. The next prime is 7425429211. The reversal of 7425429209 is 9029245247.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-7425429209 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 7425429209.

It is not an unprimeable number, because it can be changed into a prime (7425429203) 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, 420212 + ... + 437525.

It is an arithmetic number, because the mean of its divisors is an integer number (1013846316).

Almost surely, 2^7425429209 is an apocalyptic number.

It is an amenable number.

7425429209 is a deficient number, since it is larger than the sum of its proper divisors (685341319).

7425429209 is a wasteful number, since it uses less digits than its factorization.

7425429209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858535.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 7425429209 is about 86170.9301853009. The cubic root of 7425429209 is about 1950.9247604992.

It can be divided in two parts, 7425 and 429209, that added together give a palindrome (436634).

The spelling of 7425429209 in words is "seven billion, four hundred twenty-five million, four hundred twenty-nine thousand, two hundred nine".