4219628581 has 24 divisors (see below), whose sum is σ = 5080817664. Its totient is φ = 3490532640.

The previous prime is 4219628533. The next prime is 4219628587. The reversal of 4219628581 is 1858269124.

4219628581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4219628581 - 2⁷ = 4219628453 is a prime.

It is a super-2 number, since 2×4219628581² = 35610530723184147122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4219628587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 578151 + ... + 585403.

It is an arithmetic number, because the mean of its divisors is an integer number (211700736).

Almost surely, 2^4219628581 is an apocalyptic number.

It is an amenable number.

4219628581 is a deficient number, since it is larger than the sum of its proper divisors (861189083).

4219628581 is a wasteful number, since it uses less digits than its factorization.

4219628581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681 (or 7674 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 4219628581 is about 64958.6682514351. The cubic root of 4219628581 is about 1615.9381783536.

The spelling of 4219628581 in words is "four billion, two hundred nineteen million, six hundred twenty-eight thousand, five hundred eighty-one".