4648743577721 has 4 divisors (see below), whose sum is σ = 4648902532944. Its totient is φ = 4648584622500.

The previous prime is 4648743577717. The next prime is 4648743577733. The reversal of 4648743577721 is 1277753478464.

It is a happy number.

4648743577721 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 4648743577721 - 2² = 4648743577717 is a prime.

It is a super-2 number, since 2×4648743577721² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4648743597721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79433735 + ... + 79492236.

It is an arithmetic number, because the mean of its divisors is an integer number (1162225633236).

Almost surely, 2^{4648743577721} is an apocalyptic number.

It is an amenable number.

4648743577721 is a deficient number, since it is larger than the sum of its proper divisors (158955223).

4648743577721 is a wasteful number, since it uses less digits than its factorization.

4648743577721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158955222.

The product of its digits is 221276160, while the sum is 65.

The spelling of 4648743577721 in words is "four trillion, six hundred forty-eight billion, seven hundred forty-three million, five hundred seventy-seven thousand, seven hundred twenty-one".