229207781376 has 780 divisors, whose sum is σ = 832485666672. Its totient is φ = 62538448896.

The previous prime is 229207781323. The next prime is 229207781401. The reversal of 229207781376 is 673187702922.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 373911246 + ... + 373911858.

Almost surely, 2^229207781376 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 229207781376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416242833336).

229207781376 is an abundant number, since it is smaller than the sum of its proper divisors (603277885296).

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

229207781376 is an equidigital number, since it uses as much as digits as its factorization.

229207781376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 229207781376 in words is "two hundred twenty-nine billion, two hundred seven million, seven hundred eighty-one thousand, three hundred seventy-six".