28760723878 has 16 divisors (see below), whose sum is σ = 43755586560. Its totient is φ = 14175592200.

The previous prime is 28760723863. The next prime is 28760723939. The reversal of 28760723878 is 87832706782.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 1235083 + ... + 1258153.

It is an arithmetic number, because the mean of its divisors is an integer number (2734724160).

Almost surely, 2^28760723878 is an apocalyptic number.

28760723878 is a deficient number, since it is larger than the sum of its proper divisors (14994862682).

28760723878 is a wasteful number, since it uses less digits than its factorization.

28760723878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31923.

The product of its (nonzero) digits is 12644352, while the sum is 58.

The spelling of 28760723878 in words is "twenty-eight billion, seven hundred sixty million, seven hundred twenty-three thousand, eight hundred seventy-eight".