5644652421 has 8 divisors (see below), whose sum is σ = 7603793344. Its totient is φ = 3724306560.

The previous prime is 5644652417. The next prime is 5644652467. The reversal of 5644652421 is 1242564465.

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

It is not a de Polignac number, because 5644652421 - 2² = 5644652417 is a prime.

It is a super-2 number, since 2×5644652421² = 63724201907802322482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5644652421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5644652821) 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, 9698425 + ... + 9699006.

It is an arithmetic number, because the mean of its divisors is an integer number (950474168).

Almost surely, 2^5644652421 is an apocalyptic number.

It is an amenable number.

5644652421 is a deficient number, since it is larger than the sum of its proper divisors (1959140923).

5644652421 is a wasteful number, since it uses less digits than its factorization.

5644652421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19397531.

The product of its digits is 230400, while the sum is 39.

The square root of 5644652421 is about 75130.9019046091. The cubic root of 5644652421 is about 1780.5154023427.

The spelling of 5644652421 in words is "five billion, six hundred forty-four million, six hundred fifty-two thousand, four hundred twenty-one".