85727491250 has 20 divisors (see below), whose sum is σ = 160687611942. Its totient is φ = 34290996000.

The previous prime is 85727491229. The next prime is 85727491321. The reversal of 85727491250 is 5219472758.

It can be written as a sum of positive squares in 5 ways, for example, as 1126206481 + 84601284769 = 33559^2 + 290863^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34289747 + ... + 34292246.

Almost surely, 2^85727491250 is an apocalyptic number.

85727491250 is a deficient number, since it is larger than the sum of its proper divisors (74960120692).

85727491250 is an equidigital number, since it uses as much as digits as its factorization.

85727491250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68582015 (or 68582000 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 85727491250 in words is "eighty-five billion, seven hundred twenty-seven million, four hundred ninety-one thousand, two hundred fifty".