229202351872 has 72 divisors (see below), whose sum is σ = 493370859744. Its totient is φ = 105642184704.

The previous prime is 229202351857. The next prime is 229202351893. The reversal of 229202351872 is 278153202922.

It is a super-2 number, since 2×229202351872² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 2426358 + ... + 2519050.

It is an arithmetic number, because the mean of its divisors is an integer number (6852373052).

Almost surely, 2^229202351872 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 229202351872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246685429872).

229202351872 is an abundant number, since it is smaller than the sum of its proper divisors (264168507872).

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

229202351872 is an equidigital number, since it uses as much as digits as its factorization.

229202351872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93465 (or 93451 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 229202351872 in words is "two hundred twenty-nine billion, two hundred two million, three hundred fifty-one thousand, eight hundred seventy-two".