629821293122 has 18 divisors (see below), whose sum is σ = 1098987597747. Its totient is φ = 269920044324.

The previous prime is 629821293097. The next prime is 629821293149. The reversal of 629821293122 is 221392128926.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 314910646561 + 314910646561 = 561169^2 + 561169^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=561169.

It is a super-2 number, since 2×629821293122² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7816283 + ... + 7896449.

Almost surely, 2^629821293122 is an apocalyptic number.

629821293122 is a deficient number, since it is larger than the sum of its proper divisors (469166304625).

629821293122 is an frugal number, since it uses more digits than its factorization.

629821293122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160350 (or 80176 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The spelling of 629821293122 in words is "six hundred twenty-nine billion, eight hundred twenty-one million, two hundred ninety-three thousand, one hundred twenty-two".