4991660284 has 48 divisors (see below), whose sum is σ = 9951020352. Its totient is φ = 2173450752.

The previous prime is 4991660281. The next prime is 4991660299. The reversal of 4991660284 is 4820661994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991660281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58722 + ... + 115894.

It is an arithmetic number, because the mean of its divisors is an integer number (207312924).

Almost surely, 2^4991660284 is an apocalyptic number.

It is an amenable number.

4991660284 is a deficient number, since it is larger than the sum of its proper divisors (4959360068).

4991660284 is a wasteful number, since it uses less digits than its factorization.

4991660284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57286 (or 57284 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 4991660284 is about 70651.6828108149. The cubic root of 4991660284 is about 1709.0247033564.

The spelling of 4991660284 in words is "four billion, nine hundred ninety-one million, six hundred sixty thousand, two hundred eighty-four".