7857897146825 has 12 divisors (see below), whose sum is σ = 10629591777168. Its totient is φ = 5714834288400.

The previous prime is 7857897146819. The next prime is 7857897146839. The reversal of 7857897146825 is 5286417987587.

It is not a de Polignac number, because 7857897146825 - 2⁴ = 7857897146809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14287085447 + ... + 14287085996.

It is an arithmetic number, because the mean of its divisors is an integer number (885799314764).

Almost surely, 2^{7857897146825} is an apocalyptic number.

It is an amenable number.

7857897146825 is a deficient number, since it is larger than the sum of its proper divisors (2771694630343).

7857897146825 is a wasteful number, since it uses less digits than its factorization.

7857897146825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28574171464 (or 28574171459 counting only the distinct ones).

The product of its digits is 1896652800, while the sum is 77.

The spelling of 7857897146825 in words is "seven trillion, eight hundred fifty-seven billion, eight hundred ninety-seven million, one hundred forty-six thousand, eight hundred twenty-five".