285680449152 has 192 divisors, whose sum is σ = 980812497600. Its totient is φ = 81622937088.

The previous prime is 285680449127. The next prime is 285680449157. The reversal of 285680449152 is 251944086582.

285680449152 is a `hidden beast` number, since 28 + 5 + 6 + 80 + 4 + 491 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×285680449152² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (285680449157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 674148 + ... + 1012835.

It is an arithmetic number, because the mean of its divisors is an integer number (5108398425).

Almost surely, 2^285680449152 is an apocalyptic number.

It is an amenable number.

285680449152 is an abundant number, since it is smaller than the sum of its proper divisors (695132048448).

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

285680449152 is a wasteful number, since it uses less digits than its factorization.

285680449152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687020 (or 1686995 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 54.

The spelling of 285680449152 in words is "two hundred eighty-five billion, six hundred eighty million, four hundred forty-nine thousand, one hundred fifty-two".