4477721464 has 16 divisors (see below), whose sum is σ = 8398818720. Its totient is φ = 2238036480.

The previous prime is 4477721447. The next prime is 4477721503. The reversal of 4477721464 is 4641277744.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79632 + ... + 123679.

It is an arithmetic number, because the mean of its divisors is an integer number (524926170).

Almost surely, 2^4477721464 is an apocalyptic number.

It is an amenable number.

4477721464 is a deficient number, since it is larger than the sum of its proper divisors (3921097256).

4477721464 is a wasteful number, since it uses less digits than its factorization.

4477721464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206070 (or 206066 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 46.

The square root of 4477721464 is about 66915.7788865974. The cubic root of 4477721464 is about 1648.2345934538.

The spelling of 4477721464 in words is "four billion, four hundred seventy-seven million, seven hundred twenty-one thousand, four hundred sixty-four".