208846029231 has 48 divisors (see below), whose sum is σ = 373945336128. Its totient is φ = 109581004800.

The previous prime is 208846029179. The next prime is 208846029233. The reversal of 208846029231 is 132920648802.

208846029231 is a `hidden beast` number, since 2 + 0 + 8 + 8 + 4 + 602 + 9 + 2 + 31 = 666.

It is not a de Polignac number, because 208846029231 - 2¹¹ = 208846027183 is a prime.

It is a super-2 number, since 2×208846029231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208846029233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2334150 + ... + 2421971.

It is an arithmetic number, because the mean of its divisors is an integer number (7790527836).

Almost surely, 2^208846029231 is an apocalyptic number.

208846029231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

208846029231 is a deficient number, since it is larger than the sum of its proper divisors (165099306897).

208846029231 is a wasteful number, since it uses less digits than its factorization.

208846029231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756192 (or 4756189 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 208846029231 in words is "two hundred eight billion, eight hundred forty-six million, twenty-nine thousand, two hundred thirty-one".