7876857065 has 48 divisors (see below), whose sum is σ = 12287769984. Its totient is φ = 4790419200.

The previous prime is 7876857017. The next prime is 7876857071. The reversal of 7876857065 is 5607586787.

It is a happy number.

It is not a de Polignac number, because 7876857065 - 2¹⁴ = 7876840681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7876856995 and 7876857013.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74852 + ... + 146138.

It is an arithmetic number, because the mean of its divisors is an integer number (255995208).

Almost surely, 2^7876857065 is an apocalyptic number.

It is an amenable number.

7876857065 is a deficient number, since it is larger than the sum of its proper divisors (4410912919).

7876857065 is a wasteful number, since it uses less digits than its factorization.

7876857065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71358 (or 71351 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 59.

The square root of 7876857065 is about 88751.6595056115. The cubic root of 7876857065 is about 1989.6849803948.

The spelling of 7876857065 in words is "seven billion, eight hundred seventy-six million, eight hundred fifty-seven thousand, sixty-five".