4997329121 has 4 divisors (see below), whose sum is σ = 5023222212. Its totient is φ = 4971436032.

The previous prime is 4997329111. The next prime is 4997329123. The reversal of 4997329121 is 1219237994.

4997329121 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.

It can be written as a sum of positive squares in 2 ways, for example, as 2898314896 + 2099014225 = 53836^2 + 45815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4997329121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4997329123) 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, 12946256 + ... + 12946641.

It is an arithmetic number, because the mean of its divisors is an integer number (1255805553).

Almost surely, 2^4997329121 is an apocalyptic number.

It is an amenable number.

4997329121 is a deficient number, since it is larger than the sum of its proper divisors (25893091).

4997329121 is a wasteful number, since it uses less digits than its factorization.

4997329121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25893090.

The product of its digits is 244944, while the sum is 47.

The square root of 4997329121 is about 70691.7896293480. The cubic root of 4997329121 is about 1709.6714165229.

The spelling of 4997329121 in words is "four billion, nine hundred ninety-seven million, three hundred twenty-nine thousand, one hundred twenty-one".