4890978979 has 2 divisors, whose sum is σ = 4890978980. Its totient is φ = 4890978978.

The previous prime is 4890978959. The next prime is 4890979043. The reversal of 4890978979 is 9798790984.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4890978979 - 2⁵ = 4890978947 is a prime.

It is not a weakly prime, because it can be changed into another prime (4890978959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445489489 + 2445489490.

It is an arithmetic number, because the mean of its divisors is an integer number (2445489490).

Almost surely, 2^4890978979 is an apocalyptic number.

4890978979 is a deficient number, since it is larger than the sum of its proper divisors (1).

4890978979 is an equidigital number, since it uses as much as digits as its factorization.

4890978979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82301184, while the sum is 70.

The square root of 4890978979 is about 69935.5344513789. The cubic root of 4890978979 is about 1697.4562855820.

The spelling of 4890978979 in words is "four billion, eight hundred ninety million, nine hundred seventy-eight thousand, nine hundred seventy-nine".