4689078640 has 40 divisors (see below), whose sum is σ = 10906623360. Its totient is φ = 1874854656.

The previous prime is 4689078599. The next prime is 4689078763. The reversal of 4689078640 is 468709864.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206742 + ... + 228298.

It is an arithmetic number, because the mean of its divisors is an integer number (272665584).

Almost surely, 2^4689078640 is an apocalyptic number.

4689078640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4689078640 is an abundant number, since it is smaller than the sum of its proper divisors (6217544720).

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

4689078640 is a wasteful number, since it uses less digits than its factorization.

4689078640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24289 (or 24283 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 4689078640 is about 68476.8474741646. The cubic root of 4689078640 is about 1673.7702285423.

The spelling of 4689078640 in words is "four billion, six hundred eighty-nine million, seventy-eight thousand, six hundred forty".