799166374209 has 36 divisors (see below), whose sum is σ = 1342986977280. Its totient is φ = 456608683440.

The previous prime is 799166374199. The next prime is 799166374217. The reversal of 799166374209 is 902473661997.

It is not a de Polignac number, because 799166374209 - 2⁷ = 799166374081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (799166374609) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3501612 + ... + 3722850.

Almost surely, 2^799166374209 is an apocalyptic number.

It is an amenable number.

799166374209 is a deficient number, since it is larger than the sum of its proper divisors (543820603071).

799166374209 is a wasteful number, since it uses less digits than its factorization.

799166374209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229450 (or 229440 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 63.

The spelling of 799166374209 in words is "seven hundred ninety-nine billion, one hundred sixty-six million, three hundred seventy-four thousand, two hundred nine".