4996442921 has 4 divisors (see below), whose sum is σ = 5112639312. Its totient is φ = 4880246532.

The previous prime is 4996442911. The next prime is 4996442947. The reversal of 4996442921 is 1292446994.

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 not a de Polignac number, because 4996442921 - 2²² = 4992248617 is a prime.

It is a super-2 number, since 2×4996442921² = 49928883725622024482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4996442921.

It is not an unprimeable number, because it can be changed into a prime (4996442911) 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, 58098131 + ... + 58098216.

It is an arithmetic number, because the mean of its divisors is an integer number (1278159828).

Almost surely, 2^4996442921 is an apocalyptic number.

It is an amenable number.

4996442921 is a deficient number, since it is larger than the sum of its proper divisors (116196391).

4996442921 is a wasteful number, since it uses less digits than its factorization.

4996442921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116196390.

The product of its digits is 1119744, while the sum is 50.

The square root of 4996442921 is about 70685.5212967974. The cubic root of 4996442921 is about 1709.5703491766.

The spelling of 4996442921 in words is "four billion, nine hundred ninety-six million, four hundred forty-two thousand, nine hundred twenty-one".