5466975721 has 3 divisors (see below), whose sum is σ = 5467049661. Its totient is φ = 5466901782.

The previous prime is 5466975653. The next prime is 5466975757. The reversal of 5466975721 is 1275796645.

The square root of 5466975721 is 73939.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1275796645 = 5 ⋅255159329.

It is not a de Polignac number, because 5466975721 - 2¹³ = 5466967529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5466975121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 36970 + ... + 110908.

It is an arithmetic number, because the mean of its divisors is an integer number (1822349887).

Almost surely, 2^5466975721 is an apocalyptic number.

5466975721 is the 73939-th square number.

5466975721 is the 36970-th centered octagonal number.

It is an amenable number.

5466975721 is a deficient number, since it is larger than the sum of its proper divisors (73940).

5466975721 is an frugal number, since it uses more digits than its factorization.

5466975721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147878 (or 73939 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 52.

The cubic root of 5466975721 is about 1761.6341271817.

The spelling of 5466975721 in words is "five billion, four hundred sixty-six million, nine hundred seventy-five thousand, seven hundred twenty-one".