129654957641 has 12 divisors (see below), whose sum is σ = 148892053680. Its totient is φ = 111660073560.

The previous prime is 129654957589. The next prime is 129654957671. The reversal of 129654957641 is 146759456921.

It is not a de Polignac number, because 129654957641 - 2²⁶ = 129587848777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129654957671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5193110 + ... + 5218016.

It is an arithmetic number, because the mean of its divisors is an integer number (12407671140).

Almost surely, 2^129654957641 is an apocalyptic number.

129654957641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

129654957641 is a deficient number, since it is larger than the sum of its proper divisors (19237096039).

129654957641 is an frugal number, since it uses more digits than its factorization.

129654957641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49844 (or 24937 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 59.

The spelling of 129654957641 in words is "one hundred twenty-nine billion, six hundred fifty-four million, nine hundred fifty-seven thousand, six hundred forty-one".