285720063432 has 32 divisors (see below), whose sum is σ = 714673666080. Its totient is φ = 95190220160.

The previous prime is 285720063427. The next prime is 285720063437. The reversal of 285720063432 is 234360027582.

It is an interprime number because it is at equal distance from previous prime (285720063427) and next prime (285720063437).

It is a super-2 number, since 2×285720063432² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (285720063437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3065694 + ... + 3157517.

It is an arithmetic number, because the mean of its divisors is an integer number (22333552065).

Almost surely, 2^285720063432 is an apocalyptic number.

It is an amenable number.

285720063432 is an abundant number, since it is smaller than the sum of its proper divisors (428953602648).

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

285720063432 is a wasteful number, since it uses less digits than its factorization.

285720063432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225133 (or 6225129 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 285720063432 in words is "two hundred eighty-five billion, seven hundred twenty million, sixty-three thousand, four hundred thirty-two".