229371871861 has 8 divisors (see below), whose sum is σ = 250264813248. Its totient is φ = 208485756000.

The previous prime is 229371871853. The next prime is 229371872021. The reversal of 229371871861 is 168178173922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 229371871861 - 2³ = 229371871853 is a prime.

It is a super-2 number, since 2×229371871861² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229371871661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635985 + ... + 1770646.

It is an arithmetic number, because the mean of its divisors is an integer number (31283101656).

Almost surely, 2^229371871861 is an apocalyptic number.

It is an amenable number.

229371871861 is a deficient number, since it is larger than the sum of its proper divisors (20892941387).

229371871861 is a wasteful number, since it uses less digits than its factorization.

229371871861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412763.

The product of its digits is 2032128, while the sum is 55.

The spelling of 229371871861 in words is "two hundred twenty-nine billion, three hundred seventy-one million, eight hundred seventy-one thousand, eight hundred sixty-one".