5721440669 has 8 divisors (see below), whose sum is σ = 6578905920. Its totient is φ = 4874004576.

The previous prime is 5721440651. The next prime is 5721440671. The reversal of 5721440669 is 9660441275.

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

It is a de Polignac number, because none of the positive numbers 2^k-5721440669 is a prime.

It is a super-2 number, since 2×5721440669² = 65469766657774335122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721440609) 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, 2506064 + ... + 2508345.

It is an arithmetic number, because the mean of its divisors is an integer number (822363240).

Almost surely, 2^5721440669 is an apocalyptic number.

It is an amenable number.

5721440669 is a deficient number, since it is larger than the sum of its proper divisors (857465251).

5721440669 is a wasteful number, since it uses less digits than its factorization.

5721440669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014579.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 5721440669 is about 75640.2053738619. The cubic root of 5721440669 is about 1788.5529402273.

The spelling of 5721440669 in words is "five billion, seven hundred twenty-one million, four hundred forty thousand, six hundred sixty-nine".