229929648129 has 24 divisors (see below), whose sum is σ = 347489862720. Its totient is φ = 146228667552.

The previous prime is 229929648107. The next prime is 229929648161. The reversal of 229929648129 is 921846929922.

229929648129 is a `hidden beast` number, since 2 + 299 + 296 + 48 + 12 + 9 = 666.

It is not a de Polignac number, because 229929648129 - 2⁵ = 229929648097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229929648929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1411759 + ... + 1566180.

It is an arithmetic number, because the mean of its divisors is an integer number (14478744280).

It is a Proth number, since it is equal to 109639 ⋅ 2²¹ + 1 and 109639 < 2²¹.

Almost surely, 2^229929648129 is an apocalyptic number.

It is an amenable number.

229929648129 is a deficient number, since it is larger than the sum of its proper divisors (117560214591).

229929648129 is a wasteful number, since it uses less digits than its factorization.

229929648129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978341 (or 2978338 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The spelling of 229929648129 in words is "two hundred twenty-nine billion, nine hundred twenty-nine million, six hundred forty-eight thousand, one hundred twenty-nine".