208012291629 has 8 divisors (see below), whose sum is σ = 277468206432. Its totient is φ = 138615618960.

The previous prime is 208012291603. The next prime is 208012291681. The reversal of 208012291629 is 926192210802.

It is a happy number.

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

It is not a de Polignac number, because 208012291629 - 2²⁰ = 208011243053 is a prime.

It is a super-2 number, since 2×208012291629² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208012291129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14802339 + ... + 14816384.

It is an arithmetic number, because the mean of its divisors is an integer number (34683525804).

Almost surely, 2^208012291629 is an apocalyptic number.

It is an amenable number.

208012291629 is a deficient number, since it is larger than the sum of its proper divisors (69455914803).

208012291629 is a wasteful number, since it uses less digits than its factorization.

208012291629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29621067.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 208012291629 in words is "two hundred eight billion, twelve million, two hundred ninety-one thousand, six hundred twenty-nine".