2278640168504 has 16 divisors (see below), whose sum is σ = 4882800361200. Its totient is φ = 976560072192.

The previous prime is 2278640168491. The next prime is 2278640168551. The reversal of 2278640168504 is 4058610468722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20345001449 + ... + 20345001560.

It is an arithmetic number, because the mean of its divisors is an integer number (305175022575).

Almost surely, 2^{2278640168504} is an apocalyptic number.

It is an amenable number.

2278640168504 is an abundant number, since it is smaller than the sum of its proper divisors (2604160192696).

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

2278640168504 is a wasteful number, since it uses less digits than its factorization.

2278640168504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40690003022 (or 40690003018 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 2278640168504 in words is "two trillion, two hundred seventy-eight billion, six hundred forty million, one hundred sixty-eight thousand, five hundred four".