85722158650 has 12 divisors (see below), whose sum is σ = 159443215182. Its totient is φ = 34288863440.

The previous prime is 85722158647. The next prime is 85722158651. The reversal of 85722158650 is 5685122758.

It can be written as a sum of positive squares in 3 ways, for example, as 72166912321 + 13555246329 = 268639^2 + 116427^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85722158594 and 85722158603.

It is not an unprimeable number, because it can be changed into a prime (85722158651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 857221537 + ... + 857221636.

Almost surely, 2^85722158650 is an apocalyptic number.

85722158650 is a deficient number, since it is larger than the sum of its proper divisors (73721056532).

85722158650 is a wasteful number, since it uses less digits than its factorization.

85722158650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714443185 (or 1714443180 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 49.

The spelling of 85722158650 in words is "eighty-five billion, seven hundred twenty-two million, one hundred fifty-eight thousand, six hundred fifty".