4721325538 has 4 divisors (see below), whose sum is σ = 7081988310. Its totient is φ = 2360662768.

The previous prime is 4721325533. The next prime is 4721325551. The reversal of 4721325538 is 8355231274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4624952049 + 96373489 = 68007^2 + 9817^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4721325538.

It is not an unprimeable number, because it can be changed into a prime (4721325533) 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 as a sum of consecutive naturals, namely, 1180331383 + ... + 1180331386.

Almost surely, 2^4721325538 is an apocalyptic number.

4721325538 is a deficient number, since it is larger than the sum of its proper divisors (2360662772).

4721325538 is a wasteful number, since it uses less digits than its factorization.

4721325538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360662771.

The product of its digits is 201600, while the sum is 40.

The square root of 4721325538 is about 68711.9024478292. The cubic root of 4721325538 is about 1677.5983183054.

The spelling of 4721325538 in words is "four billion, seven hundred twenty-one million, three hundred twenty-five thousand, five hundred thirty-eight".