5470664721 has 4 divisors (see below), whose sum is σ = 7294219632. Its totient is φ = 3647109812.

The previous prime is 5470664707. The next prime is 5470664743. The reversal of 5470664721 is 1274660745.

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 5470664721 - 2¹⁵ = 5470631953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5470664921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911777451 + ... + 911777456.

It is an arithmetic number, because the mean of its divisors is an integer number (1823554908).

Almost surely, 2^5470664721 is an apocalyptic number.

It is an amenable number.

5470664721 is a deficient number, since it is larger than the sum of its proper divisors (1823554911).

5470664721 is a wasteful number, since it uses less digits than its factorization.

5470664721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823554910.

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 5470664721 is about 73963.9420325877. The cubic root of 5470664721 is about 1762.0302759516.

The spelling of 5470664721 in words is "five billion, four hundred seventy million, six hundred sixty-four thousand, seven hundred twenty-one".