85807428650286 has 128 divisors (see below), whose sum is σ = 208072370764800. Its totient is φ = 23029394798592.

The previous prime is 85807428650257. The next prime is 85807428650297. The reversal of 85807428650286 is 68205682470858.

It is a self number, because there is not a number n which added to its sum of digits gives 85807428650286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3005605140 + ... + 3005633688.

It is an arithmetic number, because the mean of its divisors is an integer number (1625565396600).

Almost surely, 2^{85807428650286} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85807428650286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104036185382400).

85807428650286 is an abundant number, since it is smaller than the sum of its proper divisors (122264942114514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85807428650286 is a wasteful number, since it uses less digits than its factorization.

85807428650286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36618.

The product of its (nonzero) digits is 412876800, while the sum is 69.

The spelling of 85807428650286 in words is "eighty-five trillion, eight hundred seven billion, four hundred twenty-eight million, six hundred fifty thousand, two hundred eighty-six".