4978924871 has 2 divisors, whose sum is σ = 4978924872. Its totient is φ = 4978924870.

The previous prime is 4978924823. The next prime is 4978924889. The reversal of 4978924871 is 1784298794.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4978924871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4978924871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4978924271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489462435 + 2489462436.

It is an arithmetic number, because the mean of its divisors is an integer number (2489462436).

Almost surely, 2^4978924871 is an apocalyptic number.

4978924871 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978924871 is an equidigital number, since it uses as much as digits as its factorization.

4978924871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8128512, while the sum is 59.

The square root of 4978924871 is about 70561.4970858754. The cubic root of 4978924871 is about 1707.5700322624.

The spelling of 4978924871 in words is "four billion, nine hundred seventy-eight million, nine hundred twenty-four thousand, eight hundred seventy-one".