4758789921 has 4 divisors (see below), whose sum is σ = 6345053232. Its totient is φ = 3172526612.

The previous prime is 4758789859. The next prime is 4758789947. The reversal of 4758789921 is 1299878574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4758789921 - 2¹⁸ = 4758527777 is a prime.

It is a super-3 number, since 3×4758789921³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (4758789221) 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 3 ways as a sum of consecutive naturals, for example, 793131651 + ... + 793131656.

It is an arithmetic number, because the mean of its divisors is an integer number (1586263308).

Almost surely, 2^4758789921 is an apocalyptic number.

It is an amenable number.

4758789921 is a deficient number, since it is larger than the sum of its proper divisors (1586263311).

4758789921 is a wasteful number, since it uses less digits than its factorization.

4758789921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586263310.

The product of its digits is 10160640, while the sum is 60.

The square root of 4758789921 is about 68983.9830757836. The cubic root of 4758789921 is about 1682.0239591364.

The spelling of 4758789921 in words is "four billion, seven hundred fifty-eight million, seven hundred eighty-nine thousand, nine hundred twenty-one".