4978923751 has 2 divisors, whose sum is σ = 4978923752. Its totient is φ = 4978923750.

The previous prime is 4978923749. The next prime is 4978923779. The reversal of 4978923751 is 1573298794.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4978923751 - 2¹ = 4978923749 is a prime.

Together with 4978923749, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 4978923692 and 4978923701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4978923701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489461875 + 2489461876.

It is an arithmetic number, because the mean of its divisors is an integer number (2489461876).

Almost surely, 2^4978923751 is an apocalyptic number.

4978923751 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978923751 is an equidigital number, since it uses as much as digits as its factorization.

4978923751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 55.

The square root of 4978923751 is about 70561.4891495354. The cubic root of 4978923751 is about 1707.5699042242.

The spelling of 4978923751 in words is "four billion, nine hundred seventy-eight million, nine hundred twenty-three thousand, seven hundred fifty-one".