4640116610778 has 32 divisors (see below), whose sum is σ = 10190936443392. Its totient is φ = 1396784046000.

The previous prime is 4640116610771. The next prime is 4640116610869. The reversal of 4640116610778 is 8770166110464.

It is a self number, because there is not a number n which added to its sum of digits gives 4640116610778.

It is not an unprimeable number, because it can be changed into a prime (4640116610771) 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, 232787376 + ... + 232807307.

It is an arithmetic number, because the mean of its divisors is an integer number (318466763856).

Almost surely, 2^{4640116610778} is an apocalyptic number.

4640116610778 is an abundant number, since it is smaller than the sum of its proper divisors (5550819832614).

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

4640116610778 is a wasteful number, since it uses less digits than its factorization.

4640116610778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465594850.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 4640116610778 in words is "four trillion, six hundred forty billion, one hundred sixteen million, six hundred ten thousand, seven hundred seventy-eight".