12901129844 has 6 divisors (see below), whose sum is σ = 22576977234. Its totient is φ = 6450564920.

The previous prime is 12901129837. The next prime is 12901129853. The reversal of 12901129844 is 44892110921.

It can be written as a sum of positive squares in only one way, i.e., 11350345444 + 1550784400 = 106538^2 + 39380^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612641227 + ... + 1612641234.

It is an arithmetic number, because the mean of its divisors is an integer number (3762829539).

Almost surely, 2^12901129844 is an apocalyptic number.

It is an amenable number.

12901129844 is a deficient number, since it is larger than the sum of its proper divisors (9675847390).

12901129844 is a wasteful number, since it uses less digits than its factorization.

12901129844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225282465 (or 3225282463 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 12901129844 in words is "twelve billion, nine hundred one million, one hundred twenty-nine thousand, eight hundred forty-four".