4871840391 has 16 divisors (see below), whose sum is σ = 7873681920. Its totient is φ = 2952630360.

The previous prime is 4871840383. The next prime is 4871840417. The reversal of 4871840391 is 1930481784.

It is a happy number.

4871840391 is a `hidden beast` number, since 4 + 87 + 184 + 0 + 391 = 666.

It is not a de Polignac number, because 4871840391 - 2³ = 4871840383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4871840321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8201455 + ... + 8202048.

It is an arithmetic number, because the mean of its divisors is an integer number (492105120).

Almost surely, 2^4871840391 is an apocalyptic number.

4871840391 is a deficient number, since it is larger than the sum of its proper divisors (3001841529).

4871840391 is a wasteful number, since it uses less digits than its factorization.

4871840391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16403523 (or 16403517 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 4871840391 is about 69798.5701214574. The cubic root of 4871840391 is about 1695.2393208953.

The spelling of 4871840391 in words is "four billion, eight hundred seventy-one million, eight hundred forty thousand, three hundred ninety-one".