4721506867 has 24 divisors (see below), whose sum is σ = 5996887920. Its totient is φ = 3675893760.

The previous prime is 4721506843. The next prime is 4721506873. The reversal of 4721506867 is 7686051274.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4721506867 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4721506267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 756343 + ... + 762559.

It is an arithmetic number, because the mean of its divisors is an integer number (249870330).

Almost surely, 2^4721506867 is an apocalyptic number.

4721506867 is a deficient number, since it is larger than the sum of its proper divisors (1275381053).

4721506867 is a wasteful number, since it uses less digits than its factorization.

4721506867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7651 (or 7644 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 4721506867 is about 68713.2219227130. The cubic root of 4721506867 is about 1677.6197948539.

The spelling of 4721506867 in words is "four billion, seven hundred twenty-one million, five hundred six thousand, eight hundred sixty-seven".