79149258209 has 8 divisors (see below), whose sum is σ = 91989453120. Its totient is φ = 66692352816.

The previous prime is 79149258193. The next prime is 79149258211. The reversal of 79149258209 is 90285294197.

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 79149258209 - 2⁴ = 79149258193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79149258229) 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, 95821934 + ... + 95822759.

It is an arithmetic number, because the mean of its divisors is an integer number (11498681640).

Almost surely, 2^79149258209 is an apocalyptic number.

It is an amenable number.

79149258209 is a deficient number, since it is larger than the sum of its proper divisors (12840194911).

79149258209 is a wasteful number, since it uses less digits than its factorization.

79149258209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191644759.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 79149258209 in words is "seventy-nine billion, one hundred forty-nine million, two hundred fifty-eight thousand, two hundred nine".