4778501142 has 8 divisors (see below), whose sum is σ = 9557002296. Its totient is φ = 1592833712.

The previous prime is 4778501131. The next prime is 4778501191. The reversal of 4778501142 is 2411058774.

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

4778501142 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 4778501142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398208423 + ... + 398208434.

It is an arithmetic number, because the mean of its divisors is an integer number (1194625287).

Almost surely, 2^4778501142 is an apocalyptic number.

4778501142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4778501142 is a wasteful number, since it uses less digits than its factorization.

4778501142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796416862.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 4778501142 is about 69126.7035377791. The cubic root of 4778501142 is about 1684.3431113581.

The spelling of 4778501142 in words is "four billion, seven hundred seventy-eight million, five hundred one thousand, one hundred forty-two".