4789867978 has 8 divisors (see below), whose sum is σ = 8211202272. Its totient is φ = 2052800556.

The previous prime is 4789867919. The next prime is 4789868003. The reversal of 4789867978 is 8797689874.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 4789867978.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171066700 + ... + 171066727.

It is an arithmetic number, because the mean of its divisors is an integer number (1026400284).

Almost surely, 2^4789867978 is an apocalyptic number.

4789867978 is a deficient number, since it is larger than the sum of its proper divisors (3421334294).

4789867978 is a wasteful number, since it uses less digits than its factorization.

4789867978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342133436.

The product of its digits is 341397504, while the sum is 73.

The square root of 4789867978 is about 69208.8721046659. The cubic root of 4789867978 is about 1685.6775947384.

The spelling of 4789867978 in words is "four billion, seven hundred eighty-nine million, eight hundred sixty-seven thousand, nine hundred seventy-eight".