4919479321 has 3 divisors (see below), whose sum is σ = 4919549461. Its totient is φ = 4919409182.

The previous prime is 4919479319. The next prime is 4919479379. The reversal of 4919479321 is 1239749194.

The square root of 4919479321 is 70139.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1239749194 = 2 ⋅619874597.

It is not a de Polignac number, because 4919479321 - 2¹ = 4919479319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4919479021) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35070 + ... + 105208.

Almost surely, 2^4919479321 is an apocalyptic number.

4919479321 is the 70139-th square number.

4919479321 is the 35070-th centered octagonal number.

It is an amenable number.

4919479321 is a deficient number, since it is larger than the sum of its proper divisors (70140).

4919479321 is an frugal number, since it uses more digits than its factorization.

4919479321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140278 (or 70139 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The cubic root of 4919479321 is about 1700.7469982411.

Multiplying 4919479321 by its sum of digits (49), we get a square (241054486729 = 490973²).

The spelling of 4919479321 in words is "four billion, nine hundred nineteen million, four hundred seventy-nine thousand, three hundred twenty-one".