629497971306 has 64 divisors (see below), whose sum is σ = 1475090073600. Its totient is φ = 198440506800.

The previous prime is 629497971283. The next prime is 629497971341. The reversal of 629497971306 is 603179794926.

629497971306 is a `hidden beast` number, since 6 + 2 + 9 + 497 + 9 + 7 + 130 + 6 = 666.

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 31 ways as a sum of consecutive naturals, for example, 48591 + ... + 1123101.

It is an arithmetic number, because the mean of its divisors is an integer number (23048282400).

Almost surely, 2^629497971306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 629497971306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737545036800).

629497971306 is an abundant number, since it is smaller than the sum of its proper divisors (845592102294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

629497971306 is a wasteful number, since it uses less digits than its factorization.

629497971306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075112 (or 1075106 counting only the distinct ones).

The product of its (nonzero) digits is 30862944, while the sum is 63.

The spelling of 629497971306 in words is "six hundred twenty-nine billion, four hundred ninety-seven million, nine hundred seventy-one thousand, three hundred six".