4571851868 has 48 divisors (see below), whose sum is σ = 8550831744. Its totient is φ = 2135577600.

The previous prime is 4571851861. The next prime is 4571851901. The reversal of 4571851868 is 8681581754.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4571851861) 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, 362468 + ... + 374868.

It is an arithmetic number, because the mean of its divisors is an integer number (178142328).

Almost surely, 2^4571851868 is an apocalyptic number.

It is an amenable number.

4571851868 is a deficient number, since it is larger than the sum of its proper divisors (3978979876).

4571851868 is a wasteful number, since it uses less digits than its factorization.

4571851868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12542 (or 12540 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 53.

The square root of 4571851868 is about 67615.4706261814. The cubic root of 4571851868 is about 1659.7042909657.

The spelling of 4571851868 in words is "four billion, five hundred seventy-one million, eight hundred fifty-one thousand, eight hundred sixty-eight".