28023308078 has 16 divisors (see below), whose sum is σ = 42368485104. Its totient is φ = 13900608960.

The previous prime is 28023307999. The next prime is 28023308081. The reversal of 28023308078 is 87080332082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414368 + ... + 477228.

It is an arithmetic number, because the mean of its divisors is an integer number (2648030319).

Almost surely, 2^28023308078 is an apocalyptic number.

28023308078 is a deficient number, since it is larger than the sum of its proper divisors (14345177026).

28023308078 is a wasteful number, since it uses less digits than its factorization.

28023308078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64627.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 28023308078 in words is "twenty-eight billion, twenty-three million, three hundred eight thousand, seventy-eight".