28192019418 has 24 divisors (see below), whose sum is σ = 61252869600. Its totient is φ = 9371161224.

The previous prime is 28192019399. The next prime is 28192019423. The reversal of 28192019418 is 81491029182.

28192019418 is a `hidden beast` number, since 28 + 1 + 9 + 201 + 9 + 418 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2174908 + ... + 2187831.

It is an arithmetic number, because the mean of its divisors is an integer number (2552202900).

Almost surely, 2^28192019418 is an apocalyptic number.

28192019418 is an abundant number, since it is smaller than the sum of its proper divisors (33060850182).

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

28192019418 is a wasteful number, since it uses less digits than its factorization.

28192019418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363106 (or 4363103 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 28192019418 in words is "twenty-eight billion, one hundred ninety-two million, nineteen thousand, four hundred eighteen".