5494912639129 has 3 divisors (see below), whose sum is σ = 5494914983253. Its totient is φ = 5494910295006.

The previous prime is 5494912639109. The next prime is 5494912639141. The reversal of 5494912639129 is 9219362194945.

The square root of 5494912639129 is 2344123.

It is a perfect power (a square), and thus also a powerful number.

5494912639129 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a de Polignac number, because none of the positive numbers 2^k-5494912639129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5494912639109) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1172062 + ... + 3516184.

It is an arithmetic number, because the mean of its divisors is an integer number (1831638327751).

Almost surely, 2^{5494912639129} is an apocalyptic number.

5494912639129 is the 2344123-rd square number.

5494912639129 is the 1172062-nd centered octagonal number.

It is an amenable number.

5494912639129 is a deficient number, since it is larger than the sum of its proper divisors (2344124).

5494912639129 is an frugal number, since it uses more digits than its factorization.

5494912639129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4688246 (or 2344123 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 64.

Multiplying 5494912639129 by its sum of digits (64), we get a square (351674408904256 = 18752984²).

The spelling of 5494912639129 in words is "five trillion, four hundred ninety-four billion, nine hundred twelve million, six hundred thirty-nine thousand, one hundred twenty-nine".