129697744629 has 8 divisors (see below), whose sum is σ = 173126173792. Its totient is φ = 86367239280.

The previous prime is 129697744559. The next prime is 129697744643. The reversal of 129697744629 is 926447796921.

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

It is not a de Polignac number, because 129697744629 - 2¹⁶ = 129697679093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129697744629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129697744699) 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, 24477862 + ... + 24483159.

It is an arithmetic number, because the mean of its divisors is an integer number (21640771724).

Almost surely, 2^129697744629 is an apocalyptic number.

It is an amenable number.

129697744629 is a deficient number, since it is larger than the sum of its proper divisors (43428429163).

129697744629 is an equidigital number, since it uses as much as digits as its factorization.

129697744629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48961907.

The product of its digits is 82301184, while the sum is 66.

The spelling of 129697744629 in words is "one hundred twenty-nine billion, six hundred ninety-seven million, seven hundred forty-four thousand, six hundred twenty-nine".