85784928030 has 48 divisors (see below), whose sum is σ = 223316022384. Its totient is φ = 22847754240.

The previous prime is 85784928007. The next prime is 85784928071. The reversal of 85784928030 is 3082948758.

It is a happy number.

85784928030 is a `hidden beast` number, since 8 + 5 + 78 + 492 + 80 + 3 + 0 = 666.

It is a super-2 number, since 2×85784928030² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514659 + ... + 660638.

It is an arithmetic number, because the mean of its divisors is an integer number (4652417133).

Almost surely, 2^85784928030 is an apocalyptic number.

85784928030 is an abundant number, since it is smaller than the sum of its proper divisors (137531094354).

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

85784928030 is a wasteful number, since it uses less digits than its factorization.

85784928030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176121 (or 1176118 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 85784928030 in words is "eighty-five billion, seven hundred eighty-four million, nine hundred twenty-eight thousand, thirty".