5121354449 has 4 divisors (see below), whose sum is σ = 5390899440. Its totient is φ = 4851809460.

The previous prime is 5121354443. The next prime is 5121354467. The reversal of 5121354449 is 9444531215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5121354449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5121354443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134772467 + ... + 134772504.

It is an arithmetic number, because the mean of its divisors is an integer number (1347724860).

Almost surely, 2^5121354449 is an apocalyptic number.

It is an amenable number.

5121354449 is a deficient number, since it is larger than the sum of its proper divisors (269544991).

5121354449 is a wasteful number, since it uses less digits than its factorization.

5121354449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269544990.

The product of its digits is 86400, while the sum is 38.

The square root of 5121354449 is about 71563.6391542521. The cubic root of 5121354449 is about 1723.6997215376.

The spelling of 5121354449 in words is "five billion, one hundred twenty-one million, three hundred fifty-four thousand, four hundred forty-nine".