2168375829 has 4 divisors (see below), whose sum is σ = 2891167776. Its totient is φ = 1445583884.

The previous prime is 2168375813. The next prime is 2168375831. The reversal of 2168375829 is 9285738612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2168375829 - 2⁴ = 2168375813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168375029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361395969 + ... + 361395974.

It is an arithmetic number, because the mean of its divisors is an integer number (722791944).

Almost surely, 2^2168375829 is an apocalyptic number.

It is an amenable number.

2168375829 is a deficient number, since it is larger than the sum of its proper divisors (722791947).

2168375829 is an equidigital number, since it uses as much as digits as its factorization.

2168375829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722791946.

The product of its digits is 1451520, while the sum is 51.

The square root of 2168375829 is about 46565.8225418600. The cubic root of 2168375829 is about 1294.3295086569.

The spelling of 2168375829 in words is "two billion, one hundred sixty-eight million, three hundred seventy-five thousand, eight hundred twenty-nine".