4581413689721 has 8 divisors (see below), whose sum is σ = 5014963545984. Its totient is φ = 4150706783920.

The previous prime is 4581413689703. The next prime is 4581413689747. The reversal of 4581413689721 is 1279863141854.

It is a happy number.

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-4581413689721 is a prime.

It is a super-2 number, since 2×4581413689721² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4581413689621) 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 7 ways as a sum of consecutive naturals, for example, 710734241 + ... + 710740686.

It is an arithmetic number, because the mean of its divisors is an integer number (626870443248).

Almost surely, 2^{4581413689721} is an apocalyptic number.

It is an amenable number.

4581413689721 is a deficient number, since it is larger than the sum of its proper divisors (433549856263).

4581413689721 is a wasteful number, since it uses less digits than its factorization.

4581413689721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421475231.

The product of its digits is 11612160, while the sum is 59.

The spelling of 4581413689721 in words is "four trillion, five hundred eighty-one billion, four hundred thirteen million, six hundred eighty-nine thousand, seven hundred twenty-one".