4721391832 has 16 divisors (see below), whose sum is σ = 8897549760. Its totient is φ = 2348711904.

The previous prime is 4721391821. The next prime is 4721391911. The reversal of 4721391832 is 2381931274.

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, 1496328 + ... + 1499479.

It is an arithmetic number, because the mean of its divisors is an integer number (556096860).

Almost surely, 2^4721391832 is an apocalyptic number.

It is an amenable number.

4721391832 is a deficient number, since it is larger than the sum of its proper divisors (4176157928).

4721391832 is a wasteful number, since it uses less digits than its factorization.

4721391832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2996010 (or 2996006 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 4721391832 is about 68712.3848516408. The cubic root of 4721391832 is about 1677.6061702092.

The spelling of 4721391832 in words is "four billion, seven hundred twenty-one million, three hundred ninety-one thousand, eight hundred thirty-two".