4994840121 has 8 divisors (see below), whose sum is σ = 6660124224. Its totient is φ = 3329724720.

The previous prime is 4994840087. The next prime is 4994840153. The reversal of 4994840121 is 1210484994.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4994840121 - 2⁹ = 4994839609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4994840161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68115 + ... + 120951.

It is an arithmetic number, because the mean of its divisors is an integer number (832515528).

Almost surely, 2^4994840121 is an apocalyptic number.

It is an amenable number.

4994840121 is a deficient number, since it is larger than the sum of its proper divisors (1665284103).

4994840121 is a wasteful number, since it uses less digits than its factorization.

4994840121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84351.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 4994840121 is about 70674.1828463549. The cubic root of 4994840121 is about 1709.3875262865.

The spelling of 4994840121 in words is "four billion, nine hundred ninety-four million, eight hundred forty thousand, one hundred twenty-one".