285634829436 has 192 divisors, whose sum is σ = 769808793600. Its totient is φ = 81620985600.

The previous prime is 285634829429. The next prime is 285634829443. The reversal of 285634829436 is 634928436582.

It is an interprime number because it is at equal distance from previous prime (285634829429) and next prime (285634829443).

It is a self number, because there is not a number n which added to its sum of digits gives 285634829436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84281230 + ... + 84284618.

It is an arithmetic number, because the mean of its divisors is an integer number (4009420800).

Almost surely, 2^285634829436 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 285634829436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384904396800).

285634829436 is an abundant number, since it is smaller than the sum of its proper divisors (484173964164).

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

285634829436 is a wasteful number, since it uses less digits than its factorization.

285634829436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3960 (or 3958 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 60.

The spelling of 285634829436 in words is "two hundred eighty-five billion, six hundred thirty-four million, eight hundred twenty-nine thousand, four hundred thirty-six".