2085729879 has 8 divisors (see below), whose sum is σ = 2870682112. Its totient is φ = 1345632120.

The previous prime is 2085729871. The next prime is 2085729911. The reversal of 2085729879 is 9789275802.

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

It is not a de Polignac number, because 2085729879 - 2³ = 2085729871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085729871) 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, 11213509 + ... + 11213694.

It is an arithmetic number, because the mean of its divisors is an integer number (358835264).

Almost surely, 2^2085729879 is an apocalyptic number.

2085729879 is a deficient number, since it is larger than the sum of its proper divisors (784952233).

2085729879 is a wasteful number, since it uses less digits than its factorization.

2085729879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22427237.

The product of its (nonzero) digits is 5080320, while the sum is 57.

The square root of 2085729879 is about 45669.7917556014. The cubic root of 2085729879 is about 1277.6719318026.

The spelling of 2085729879 in words is "two billion, eighty-five million, seven hundred twenty-nine thousand, eight hundred seventy-nine".