4791182521129 has 3 divisors (see below), whose sum is σ = 4791184710007. Its totient is φ = 4791180332252.

The previous prime is 4791182521087. The next prime is 4791182521163. The reversal of 4791182521129 is 9211252811974.

The square root of 4791182521129 is 2188877.

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

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 can be written as a sum of positive squares in only one way, i.e., 1833979520025 + 2957203001104 = 1354245^2 + 1719652^2 .

It is not a de Polignac number, because 4791182521129 - 2¹³ = 4791182512937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4791182524129) 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, 1094439 + ... + 3283315.

Almost surely, 2^{4791182521129} is an apocalyptic number.

4791182521129 is the 2188877-th square number.

4791182521129 is the 1094439-th centered octagonal number.

It is an amenable number.

4791182521129 is a deficient number, since it is larger than the sum of its proper divisors (2188878).

4791182521129 is an frugal number, since it uses more digits than its factorization.

4791182521129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377754 (or 2188877 counting only the distinct ones).

The product of its digits is 725760, while the sum is 52.

The spelling of 4791182521129 in words is "four trillion, seven hundred ninety-one billion, one hundred eighty-two million, five hundred twenty-one thousand, one hundred twenty-nine".