4791593978 has 8 divisors (see below), whose sum is σ = 7187805972. Its totient is φ = 2395658656.

The previous prime is 4791593977. The next prime is 4791593987. The reversal of 4791593978 is 8793951974.

It can be written as a sum of positive squares in 2 ways, for example, as 4775777449 + 15816529 = 69107^2 + 3977^2 .

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 4791593978.

It is not an unprimeable number, because it can be changed into a prime (4791593977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18425 + ... + 99612.

Almost surely, 2^4791593978 is an apocalyptic number.

4791593978 is a deficient number, since it is larger than the sum of its proper divisors (2396211994).

4791593978 is a wasteful number, since it uses less digits than its factorization.

4791593978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138336.

The product of its digits is 17146080, while the sum is 62.

The square root of 4791593978 is about 69221.3404810973. The cubic root of 4791593978 is about 1685.8800450036.

The spelling of 4791593978 in words is "four billion, seven hundred ninety-one million, five hundred ninety-three thousand, nine hundred seventy-eight".