129551038841 has 8 divisors (see below), whose sum is σ = 148161231360. Its totient is φ = 110966571648.

The previous prime is 129551038801. The next prime is 129551038871. The reversal of 129551038841 is 148830155921.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129551038841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129551038801) 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, 6420536 + ... + 6440681.

It is an arithmetic number, because the mean of its divisors is an integer number (18520153920).

Almost surely, 2^129551038841 is an apocalyptic number.

It is an amenable number.

129551038841 is a deficient number, since it is larger than the sum of its proper divisors (18610192519).

129551038841 is a wasteful number, since it uses less digits than its factorization.

129551038841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12862663.

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 129551038841 in words is "one hundred twenty-nine billion, five hundred fifty-one million, thirty-eight thousand, eight hundred forty-one".