4777643020 has 24 divisors (see below), whose sum is σ = 10099500768. Its totient is φ = 1898400000.

The previous prime is 4777642981. The next prime is 4777643021. The reversal of 4777643020 is 203467774.

It is not an unprimeable number, because it can be changed into a prime (4777643021) 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, 787981 + ... + 794020.

It is an arithmetic number, because the mean of its divisors is an integer number (420812532).

Almost surely, 2^4777643020 is an apocalyptic number.

It is an amenable number.

4777643020 is an abundant number, since it is smaller than the sum of its proper divisors (5321857748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4777643020 is a wasteful number, since it uses less digits than its factorization.

4777643020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582161 (or 1582159 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 40.

The square root of 4777643020 is about 69120.4963813195. The cubic root of 4777643020 is about 1684.2422806886.

The spelling of 4777643020 in words is "four billion, seven hundred seventy-seven million, six hundred forty-three thousand, twenty".