4539927621 has 8 divisors (see below), whose sum is σ = 6371828320. Its totient is φ = 2867322672.

The previous prime is 4539927617. The next prime is 4539927631. The reversal of 4539927621 is 1267299354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4539927621 - 2² = 4539927617 is a prime.

It is a super-2 number, since 2×4539927621² = 41221885607837439282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4539927631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39823870 + ... + 39823983.

It is an arithmetic number, because the mean of its divisors is an integer number (796478540).

Almost surely, 2^4539927621 is an apocalyptic number.

It is an amenable number.

4539927621 is a deficient number, since it is larger than the sum of its proper divisors (1831900699).

4539927621 is a wasteful number, since it uses less digits than its factorization.

4539927621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79647875.

The product of its digits is 816480, while the sum is 48.

The square root of 4539927621 is about 67378.9850101647. The cubic root of 4539927621 is about 1655.8321461498.

The spelling of 4539927621 in words is "four billion, five hundred thirty-nine million, nine hundred twenty-seven thousand, six hundred twenty-one".