4874971639 has 2 divisors, whose sum is σ = 4874971640. Its totient is φ = 4874971638.

The previous prime is 4874971637. The next prime is 4874971643. The reversal of 4874971639 is 9361794784.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4874971639 - 2¹ = 4874971637 is a prime.

Together with 4874971637, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4874971631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2437485819 + 2437485820.

It is an arithmetic number, because the mean of its divisors is an integer number (2437485820).

Almost surely, 2^4874971639 is an apocalyptic number.

4874971639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4874971639 is an equidigital number, since it uses as much as digits as its factorization.

4874971639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9144576, while the sum is 58.

The square root of 4874971639 is about 69820.9971212099. The cubic root of 4874971639 is about 1695.6024333589.

The spelling of 4874971639 in words is "four billion, eight hundred seventy-four million, nine hundred seventy-one thousand, six hundred thirty-nine".