1285717392859 has 16 divisors (see below), whose sum is σ = 1302299460000. Its totient is φ = 1269265400064.

The previous prime is 1285717392847. The next prime is 1285717392913. The reversal of 1285717392859 is 9582937175821.

It is a cyclic number.

It is not a de Polignac number, because 1285717392859 - 2¹⁹ = 1285716868571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1285717392794 and 1285717392803.

It is not an unprimeable number, because it can be changed into a prime (1285717392829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15924039 + ... + 16004575.

It is an arithmetic number, because the mean of its divisors is an integer number (81393716250).

Almost surely, 2^{1285717392859} is an apocalyptic number.

1285717392859 is a deficient number, since it is larger than the sum of its proper divisors (16582067141).

1285717392859 is a wasteful number, since it uses less digits than its factorization.

1285717392859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81342.

The product of its digits is 76204800, while the sum is 67.

The spelling of 1285717392859 in words is "one trillion, two hundred eighty-five billion, seven hundred seventeen million, three hundred ninety-two thousand, eight hundred fifty-nine".