285763447197840 has 160 divisors (see below), whose sum is σ = 886791231728640. Its totient is φ = 76124070010368.

The previous prime is 285763447197817. The next prime is 285763447197841. The reversal of 285763447197840 is 48791744367582.

It is not an unprimeable number, because it can be changed into a prime (285763447197841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2735599531 + ... + 2735703989.

It is an arithmetic number, because the mean of its divisors is an integer number (5542445198304).

It is a 2-persistent number, because it is pandigital, and so is 2⋅285763447197840 = 571526894395680, but 3⋅285763447197840 = 857290341593520 is not.

Almost surely, 2^{285763447197840} is an apocalyptic number.

285763447197840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285763447197840 is an abundant number, since it is smaller than the sum of its proper divisors (601027784530800).

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

285763447197840 is a wasteful number, since it uses less digits than its factorization.

285763447197840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116261 (or 116255 counting only the distinct ones).

The product of its (nonzero) digits is 2275983360, while the sum is 75.

The spelling of 285763447197840 in words is "two hundred eighty-five trillion, seven hundred sixty-three billion, four hundred forty-seven million, one hundred ninety-seven thousand, eight hundred forty".