2078010857 has 8 divisors (see below), whose sum is σ = 2275788480. Its totient is φ = 1885651920.

The previous prime is 2078010853. The next prime is 2078010871. The reversal of 2078010857 is 7580108702.

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 2078010857 - 2² = 2078010853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2078010857.

It is not an unprimeable number, because it can be changed into a prime (2078010853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1353869 + ... + 1355402.

It is an arithmetic number, because the mean of its divisors is an integer number (284473560).

Almost surely, 2^2078010857 is an apocalyptic number.

It is an amenable number.

2078010857 is a deficient number, since it is larger than the sum of its proper divisors (197777623).

2078010857 is a wasteful number, since it uses less digits than its factorization.

2078010857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709343.

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 2078010857 is about 45585.2043650130. The cubic root of 2078010857 is about 1276.0938160877.

The spelling of 2078010857 in words is "two billion, seventy-eight million, ten thousand, eight hundred fifty-seven".