5654773721 has 4 divisors (see below), whose sum is σ = 5900633472. Its totient is φ = 5408913972.

The previous prime is 5654773703. The next prime is 5654773727. The reversal of 5654773721 is 1273774565.

It is a happy number.

5654773721 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 a de Polignac number, because none of the positive numbers 2^k-5654773721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5654773727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122929841 + ... + 122929886.

It is an arithmetic number, because the mean of its divisors is an integer number (1475158368).

Almost surely, 2^5654773721 is an apocalyptic number.

It is an amenable number.

5654773721 is a deficient number, since it is larger than the sum of its proper divisors (245859751).

5654773721 is a wasteful number, since it uses less digits than its factorization.

5654773721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245859750.

The product of its digits is 1234800, while the sum is 47.

The square root of 5654773721 is about 75198.2295070835. The cubic root of 5654773721 is about 1781.5789676915.

The spelling of 5654773721 in words is "five billion, six hundred fifty-four million, seven hundred seventy-three thousand, seven hundred twenty-one".