4857667581 has 16 divisors (see below), whose sum is σ = 7163631104. Its totient is φ = 2908540224.

The previous prime is 4857667571. The next prime is 4857667583. The reversal of 4857667581 is 1857667584.

It is a happy number.

It is not a de Polignac number, because 4857667581 - 2⁶ = 4857667517 is a prime.

It is a super-2 number, since 2×4857667581² = 47193868654996783122, 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 (4857667583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681741 + ... + 1684626.

It is an arithmetic number, because the mean of its divisors is an integer number (447726944).

Almost surely, 2^4857667581 is an apocalyptic number.

It is an amenable number.

4857667581 is a deficient number, since it is larger than the sum of its proper divisors (2305963523).

4857667581 is a wasteful number, since it uses less digits than its factorization.

4857667581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366420.

The product of its digits is 11289600, while the sum is 57.

The square root of 4857667581 is about 69696.9696687022. The cubic root of 4857667581 is about 1693.5938345127.

The spelling of 4857667581 in words is "four billion, eight hundred fifty-seven million, six hundred sixty-seven thousand, five hundred eighty-one".