4993084521 has 6 divisors (see below), whose sum is σ = 7212233210. Its totient is φ = 3328723008.

The previous prime is 4993084489. The next prime is 4993084529. The reversal of 4993084521 is 1254803994.

4993084521 is a `hidden beast` number, since 4 + 99 + 30 + 8 + 4 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2566536921 + 2426547600 = 50661^2 + 49260^2 .

It is not a de Polignac number, because 4993084521 - 2⁵ = 4993084489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4993084529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277393576 + ... + 277393593.

Almost surely, 2^4993084521 is an apocalyptic number.

It is an amenable number.

4993084521 is a deficient number, since it is larger than the sum of its proper divisors (2219148689).

4993084521 is a wasteful number, since it uses less digits than its factorization.

4993084521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554787175 (or 554787172 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 4993084521 is about 70661.7613777070. The cubic root of 4993084521 is about 1709.1872294244.

The spelling of 4993084521 in words is "four billion, nine hundred ninety-three million, eighty-four thousand, five hundred twenty-one".