4911109921 has 4 divisors (see below), whose sum is σ = 4913305600. Its totient is φ = 4908914244.

The previous prime is 4911109919. The next prime is 4911109927. The reversal of 4911109921 is 1299011194.

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 4911109921 - 2¹ = 4911109919 is a prime.

It is a super-2 number, since 2×4911109921² = 48238001312289252482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4911109927) 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, 1094481 + ... + 1098958.

It is an arithmetic number, because the mean of its divisors is an integer number (1228326400).

Almost surely, 2^4911109921 is an apocalyptic number.

It is an amenable number.

4911109921 is a deficient number, since it is larger than the sum of its proper divisors (2195679).

4911109921 is a wasteful number, since it uses less digits than its factorization.

4911109921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195678.

The product of its (nonzero) digits is 5832, while the sum is 37.

The square root of 4911109921 is about 70079.3116475897. The cubic root of 4911109921 is about 1699.7819698467.

The spelling of 4911109921 in words is "four billion, nine hundred eleven million, one hundred nine thousand, nine hundred twenty-one".