129406430630 has 16 divisors (see below), whose sum is σ = 245191132080. Its totient is φ = 49038226272.

The previous prime is 129406430513. The next prime is 129406430633. The reversal of 129406430630 is 36034604921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129406430633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340543049 + ... + 340543428.

It is an arithmetic number, because the mean of its divisors is an integer number (15324445755).

Almost surely, 2^129406430630 is an apocalyptic number.

129406430630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129406430630 is a deficient number, since it is larger than the sum of its proper divisors (115784701450).

129406430630 is a wasteful number, since it uses less digits than its factorization.

129406430630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681086503.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 129406430630 in words is "one hundred twenty-nine billion, four hundred six million, four hundred thirty thousand, six hundred thirty".