4920425978 has 32 divisors (see below), whose sum is σ = 8177210496. Its totient is φ = 2206421568.

The previous prime is 4920425971. The next prime is 4920426013. The reversal of 4920425978 is 8795240294.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4920425971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124601 + ... + 159267.

It is an arithmetic number, because the mean of its divisors is an integer number (255537828).

Almost surely, 2^4920425978 is an apocalyptic number.

4920425978 is a deficient number, since it is larger than the sum of its proper divisors (3256784518).

4920425978 is a wasteful number, since it uses less digits than its factorization.

4920425978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34838.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 4920425978 is about 70145.7481106303. The cubic root of 4920425978 is about 1700.8560830097.

The spelling of 4920425978 in words is "four billion, nine hundred twenty million, four hundred twenty-five thousand, nine hundred seventy-eight".