4477139672 has 8 divisors (see below), whose sum is σ = 8394636900. Its totient is φ = 2238569832.

The previous prime is 4477139671. The next prime is 4477139687. The reversal of 4477139672 is 2769317744.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 4477139672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4477139671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279821222 + ... + 279821237.

Almost surely, 2^4477139672 is an apocalyptic number.

It is an amenable number.

4477139672 is a deficient number, since it is larger than the sum of its proper divisors (3917497228).

4477139672 is a wasteful number, since it uses less digits than its factorization.

4477139672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559642465 (or 559642461 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 50.

The square root of 4477139672 is about 66911.4315494744. The cubic root of 4477139672 is about 1648.1632051191.

The spelling of 4477139672 in words is "four billion, four hundred seventy-seven million, one hundred thirty-nine thousand, six hundred seventy-two".