79245938609 has 8 divisors (see below), whose sum is σ = 79412663880. Its totient is φ = 79079270400.

The previous prime is 79245938591. The next prime is 79245938623. The reversal of 79245938609 is 90683954297.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9088762225 + 70157176384 = 95335^2 + 264872^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 79245938609 - 2¹⁶ = 79245873073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79245938669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3828929 + ... + 3849569.

It is an arithmetic number, because the mean of its divisors is an integer number (9926582985).

Almost surely, 2^79245938609 is an apocalyptic number.

It is an amenable number.

79245938609 is a deficient number, since it is larger than the sum of its proper divisors (166725271).

79245938609 is a wasteful number, since it uses less digits than its factorization.

79245938609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28531.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 79245938609 in words is "seventy-nine billion, two hundred forty-five million, nine hundred thirty-eight thousand, six hundred nine".