229778637587712 has 1008 divisors, whose sum is σ = 760578569936640. Its totient is φ = 68923055996928.

The previous prime is 229778637587711. The next prime is 229778637587731. The reversal of 229778637587712 is 217785736877922.

229778637587712 is a `hidden beast` number, since 2 + 2 + 97 + 7 + 86 + 375 + 8 + 77 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229778637587711) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 9476567973 + ... + 9476592219.

It is an arithmetic number, because the mean of its divisors is an integer number (754542232080).

Almost surely, 2^{229778637587712} 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 229778637587712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380289284968320).

229778637587712 is an abundant number, since it is smaller than the sum of its proper divisors (530799932348928).

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

229778637587712 is a wasteful number, since it uses less digits than its factorization.

229778637587712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24430 (or 24401 counting only the distinct ones).

The product of its digits is 6970199040, while the sum is 81.

The spelling of 229778637587712 in words is "two hundred twenty-nine trillion, seven hundred seventy-eight billion, six hundred thirty-seven million, five hundred eighty-seven thousand, seven hundred twelve".