8125857504787 has 12 divisors (see below), whose sum is σ = 9078149443888. Its totient is φ = 7266042471600.

The previous prime is 8125857504733. The next prime is 8125857504797. The reversal of 8125857504787 is 7874057585218.

It is not a de Polignac number, because 8125857504787 - 2¹⁹ = 8125856980499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8125857504707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550450383 + ... + 550465144.

Almost surely, 2^{8125857504787} is an apocalyptic number.

8125857504787 is a deficient number, since it is larger than the sum of its proper divisors (952291939101).

8125857504787 is a wasteful number, since it uses less digits than its factorization.

8125857504787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100915610 (or 1100915599 counting only the distinct ones).

The product of its (nonzero) digits is 175616000, while the sum is 67.

The spelling of 8125857504787 in words is "eight trillion, one hundred twenty-five billion, eight hundred fifty-seven million, five hundred four thousand, seven hundred eighty-seven".