28522018378 has 32 divisors (see below), whose sum is σ = 51517872000. Its totient is φ = 11569215744.

The previous prime is 28522018363. The next prime is 28522018381. The reversal of 28522018378 is 87381022582.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227926 + ... + 330142.

It is an arithmetic number, because the mean of its divisors is an integer number (1609933500).

Almost surely, 2^28522018378 is an apocalyptic number.

28522018378 is a deficient number, since it is larger than the sum of its proper divisors (22995853622).

28522018378 is a wasteful number, since it uses less digits than its factorization.

28522018378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103294.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 28522018378 in words is "twenty-eight billion, five hundred twenty-two million, eighteen thousand, three hundred seventy-eight".