5648764021 has 8 divisors (see below), whose sum is σ = 5705036064. Its totient is φ = 5592767760.

The previous prime is 5648763979. The next prime is 5648764061. The reversal of 5648764021 is 1204678465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5648764021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5648764061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27655 + ... + 109828.

It is an arithmetic number, because the mean of its divisors is an integer number (713129508).

Almost surely, 2^5648764021 is an apocalyptic number.

It is an amenable number.

5648764021 is a deficient number, since it is larger than the sum of its proper divisors (56272043).

5648764021 is a wasteful number, since it uses less digits than its factorization.

5648764021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137891.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 5648764021 is about 75158.2598321701. The cubic root of 5648764021 is about 1780.9476102570.

The spelling of 5648764021 in words is "five billion, six hundred forty-eight million, seven hundred sixty-four thousand, twenty-one".