4643877381 has 32 divisors (see below), whose sum is σ = 7657198080. Its totient is φ = 2461233600.

The previous prime is 4643877349. The next prime is 4643877389. The reversal of 4643877381 is 1837783464.

It is a happy number.

It is not a de Polignac number, because 4643877381 - 2⁵ = 4643877349 is a prime.

It is a super-2 number, since 2×4643877381² = 43131194259526838322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4643877389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276715 + ... + 293016.

It is an arithmetic number, because the mean of its divisors is an integer number (239287440).

Almost surely, 2^4643877381 is an apocalyptic number.

It is an amenable number.

4643877381 is a deficient number, since it is larger than the sum of its proper divisors (3013320699).

4643877381 is a wasteful number, since it uses less digits than its factorization.

4643877381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569777.

The product of its digits is 2709504, while the sum is 51.

The square root of 4643877381 is about 68146.0004769172. Note that the first 3 decimals coincide. The cubic root of 4643877381 is about 1668.3746459173.

The spelling of 4643877381 in words is "four billion, six hundred forty-three million, eight hundred seventy-seven thousand, three hundred eighty-one".