285237247680 has 1512 divisors, whose sum is σ = 1316587044240. Its totient is φ = 56040284160.

The previous prime is 285237247601. The next prime is 285237247697. The reversal of 285237247680 is 86742732582.

285237247680 is a `hidden beast` number, since 2 + 8 + 5 + 23 + 72 + 476 + 80 = 666.

285237247680 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 560387266 + ... + 560387774.

Almost surely, 2^285237247680 is an apocalyptic number.

285237247680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285237247680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658293522120).

285237247680 is an abundant number, since it is smaller than the sum of its proper divisors (1031349796560).

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

285237247680 is a wasteful number, since it uses less digits than its factorization.

285237247680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 285237247680 in words is "two hundred eighty-five billion, two hundred thirty-seven million, two hundred forty-seven thousand, six hundred eighty".