64113144621 has 8 divisors (see below), whose sum is σ = 89200896960. Its totient is φ = 40883744352.

The previous prime is 64113144521. The next prime is 64113144629. The reversal of 64113144621 is 12644131146.

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

It is not a de Polignac number, because 64113144621 - 2³⁵ = 29753406253 is a prime.

It is a super-2 number, since 2×64113144621² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64113144629) 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, 464587936 + ... + 464588073.

It is an arithmetic number, because the mean of its divisors is an integer number (11150112120).

Almost surely, 2^64113144621 is an apocalyptic number.

It is an amenable number.

64113144621 is a deficient number, since it is larger than the sum of its proper divisors (25087752339).

64113144621 is a wasteful number, since it uses less digits than its factorization.

64113144621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929176035.

The product of its digits is 13824, while the sum is 33.

Adding to 64113144621 its reverse (12644131146), we get a palindrome (76757275767).

The spelling of 64113144621 in words is "sixty-four billion, one hundred thirteen million, one hundred forty-four thousand, six hundred twenty-one".