4613599978 has 32 divisors (see below), whose sum is σ = 7979867280. Its totient is φ = 1981562880.

The previous prime is 4613599957. The next prime is 4613599979. The reversal of 4613599978 is 8799953164.

It can be written as a sum of positive squares in 8 ways, for example, as 2579319369 + 2034280609 = 50787^2 + 45103^2 .

It is not an unprimeable number, because it can be changed into a prime (4613599979) 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, 19303 + ... + 97978.

Almost surely, 2^4613599978 is an apocalyptic number.

4613599978 is a deficient number, since it is larger than the sum of its proper divisors (3366267302).

4613599978 is a wasteful number, since it uses less digits than its factorization.

4613599978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117402.

The product of its digits is 14696640, while the sum is 61.

The square root of 4613599978 is about 67923.4862032272. The cubic root of 4613599978 is about 1664.7408841452.

The spelling of 4613599978 in words is "four billion, six hundred thirteen million, five hundred ninety-nine thousand, nine hundred seventy-eight".