7857857873 has 8 divisors (see below), whose sum is σ = 8353326720. Its totient is φ = 7370578800.

The previous prime is 7857857809. The next prime is 7857857879. The reversal of 7857857873 is 3787587587.

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

It is not a de Polignac number, because 7857857873 - 2⁶ = 7857857809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7857857879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2045465 + ... + 2049302.

It is an arithmetic number, because the mean of its divisors is an integer number (1044165840).

Almost surely, 2^7857857873 is an apocalyptic number.

It is an amenable number.

7857857873 is a deficient number, since it is larger than the sum of its proper divisors (495468847).

7857857873 is a wasteful number, since it uses less digits than its factorization.

7857857873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094887.

The product of its digits is 92198400, while the sum is 65.

The square root of 7857857873 is about 88644.5591844192. The cubic root of 7857857873 is about 1988.0839678370.

The spelling of 7857857873 in words is "seven billion, eight hundred fifty-seven million, eight hundred fifty-seven thousand, eight hundred seventy-three".