629661693973 has 8 divisors (see below), whose sum is σ = 687647874816. Its totient is φ = 573039894000.

The previous prime is 629661693971. The next prime is 629661694049. The reversal of 629661693973 is 379396166926.

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 629661693973 - 2¹ = 629661693971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 629661693899 and 629661693908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629661693971) 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, 341094253 + ... + 341096098.

It is an arithmetic number, because the mean of its divisors is an integer number (85955984352).

Almost surely, 2^629661693973 is an apocalyptic number.

It is an amenable number.

629661693973 is a deficient number, since it is larger than the sum of its proper divisors (57986180843).

629661693973 is a wasteful number, since it uses less digits than its factorization.

629661693973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682190435.

The product of its digits is 119042784, while the sum is 67.

The spelling of 629661693973 in words is "six hundred twenty-nine billion, six hundred sixty-one million, six hundred ninety-three thousand, nine hundred seventy-three".