285497726976 has 1440 divisors, whose sum is σ = 1127921034240. Its totient is φ = 71066419200.

The previous prime is 285497726951. The next prime is 285497727013. The reversal of 285497726976 is 679627794582.

285497726976 is a `hidden beast` number, since 2 + 8 + 5 + 497 + 7 + 2 + 69 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2771822541 + ... + 2771822643.

It is an arithmetic number, because the mean of its divisors is an integer number (783278496).

Almost surely, 2^285497726976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285497726976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563960517120).

285497726976 is an abundant number, since it is smaller than the sum of its proper divisors (842423307264).

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

285497726976 is a wasteful number, since it uses less digits than its factorization.

285497726976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 157 counting only the distinct ones).

The product of its digits is 640120320, while the sum is 72.

The spelling of 285497726976 in words is "two hundred eighty-five billion, four hundred ninety-seven million, seven hundred twenty-six thousand, nine hundred seventy-six".