28178888054 has 16 divisors (see below), whose sum is σ = 43258387392. Its totient is φ = 13759532808.

The previous prime is 28178888051. The next prime is 28178888057. The reversal of 28178888054 is 45088887182.

It is an interprime number because it is at equal distance from previous prime (28178888051) and next prime (28178888057).

It is a junction number, because it is equal to n+sod(n) for n = 28178887984 and 28178888002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28178888051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582437 + ... + 628959.

It is an arithmetic number, because the mean of its divisors is an integer number (2703649212).

Almost surely, 2^28178888054 is an apocalyptic number.

28178888054 is a deficient number, since it is larger than the sum of its proper divisors (15079499338).

28178888054 is a wasteful number, since it uses less digits than its factorization.

28178888054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53611.

The product of its (nonzero) digits is 9175040, while the sum is 59.

The spelling of 28178888054 in words is "twenty-eight billion, one hundred seventy-eight million, eight hundred eighty-eight thousand, fifty-four".