285216706512 has 60 divisors (see below), whose sum is σ = 798897450624. Its totient is φ = 94990432320.

The previous prime is 285216706469. The next prime is 285216706543. The reversal of 285216706512 is 215607612582.

285216706512 is a `hidden beast` number, since 2 + 8 + 52 + 16 + 70 + 6 + 512 = 666.

It is a super-2 number, since 2×285216706512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 684064 + ... + 1019007.

Almost surely, 2^285216706512 is an apocalyptic number.

It is an amenable number.

285216706512 is an abundant number, since it is smaller than the sum of its proper divisors (513680744112).

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

285216706512 is a wasteful number, since it uses less digits than its factorization.

285216706512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704248 (or 1704239 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 285216706512 in words is "two hundred eighty-five billion, two hundred sixteen million, seven hundred six thousand, five hundred twelve".