229785535936 has 84 divisors (see below), whose sum is σ = 503580841960. Its totient is φ = 103952217600.

The previous prime is 229785535919. The next prime is 229785535957. The reversal of 229785535936 is 639535587922.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1563670 + ... + 1704298.

Almost surely, 2^229785535936 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 229785535936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251790420980).

229785535936 is an abundant number, since it is smaller than the sum of its proper divisors (273795306024).

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

229785535936 is a wasteful number, since it uses less digits than its factorization.

229785535936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140874 (or 140853 counting only the distinct ones).

The product of its digits is 122472000, while the sum is 64.

The spelling of 229785535936 in words is "two hundred twenty-nine billion, seven hundred eighty-five million, five hundred thirty-five thousand, nine hundred thirty-six".