2861308085 has 8 divisors (see below), whose sum is σ = 3498354360. Its totient is φ = 2245856704.

The previous prime is 2861308067. The next prime is 2861308103. The reversal of 2861308085 is 5808031682.

It is an interprime number because it is at equal distance from previous prime (2861308067) and next prime (2861308103).

It can be written as a sum of positive squares in 4 ways, for example, as 6115729 + 2855192356 = 2473^2 + 53434^2 .

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 2861308085 - 2¹² = 2861303989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5398430 + ... + 5398959.

It is an arithmetic number, because the mean of its divisors is an integer number (437294295).

Almost surely, 2^2861308085 is an apocalyptic number.

It is an amenable number.

2861308085 is a deficient number, since it is larger than the sum of its proper divisors (637046275).

2861308085 is a wasteful number, since it uses less digits than its factorization.

2861308085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10797447.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 2861308085 is about 53491.1963317329. The cubic root of 2861308085 is about 1419.6726225725.

The spelling of 2861308085 in words is "two billion, eight hundred sixty-one million, three hundred eight thousand, eighty-five".