4612971921 has 4 divisors (see below), whose sum is σ = 6150629232. Its totient is φ = 3075314612.

The previous prime is 4612971919. The next prime is 4612971953. The reversal of 4612971921 is 1291792164.

4612971921 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, 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 4612971921 - 2¹ = 4612971919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4612971911) 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, 768828651 + ... + 768828656.

It is an arithmetic number, because the mean of its divisors is an integer number (1537657308).

Almost surely, 2^4612971921 is an apocalyptic number.

It is an amenable number.

4612971921 is a deficient number, since it is larger than the sum of its proper divisors (1537657311).

4612971921 is a wasteful number, since it uses less digits than its factorization.

4612971921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537657310.

The product of its digits is 54432, while the sum is 42.

The square root of 4612971921 is about 67918.8627775819. The cubic root of 4612971921 is about 1664.6653394065.

The spelling of 4612971921 in words is "four billion, six hundred twelve million, nine hundred seventy-one thousand, nine hundred twenty-one".