4609136978 has 8 divisors (see below), whose sum is σ = 7136728320. Its totient is φ = 2230227540.

The previous prime is 4609136971. The next prime is 4609136981. The reversal of 4609136978 is 8796319064.

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

It is not an unprimeable number, because it can be changed into a prime (4609136971) 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, 37170398 + ... + 37170521.

It is an arithmetic number, because the mean of its divisors is an integer number (892091040).

Almost surely, 2^4609136978 is an apocalyptic number.

4609136978 is a deficient number, since it is larger than the sum of its proper divisors (2527591342).

4609136978 is a wasteful number, since it uses less digits than its factorization.

4609136978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74340952.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 4609136978 is about 67890.6251112773. The cubic root of 4609136978 is about 1664.2039111648.

The spelling of 4609136978 in words is "four billion, six hundred nine million, one hundred thirty-six thousand, nine hundred seventy-eight".