28626888254 has 16 divisors (see below), whose sum is σ = 43121030400. Its totient is φ = 14253266520.

The previous prime is 28626888247. The next prime is 28626888299. The reversal of 28626888254 is 45288862682.

It is a super-2 number, since 2×28626888254² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28626888193 and 28626888202.

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, 1125077 + ... + 1150239.

It is an arithmetic number, because the mean of its divisors is an integer number (2695064400).

Almost surely, 2^28626888254 is an apocalyptic number.

28626888254 is a deficient number, since it is larger than the sum of its proper divisors (14494142146).

28626888254 is a wasteful number, since it uses less digits than its factorization.

28626888254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27535.

The product of its digits is 23592960, while the sum is 59.

The spelling of 28626888254 in words is "twenty-eight billion, six hundred twenty-six million, eight hundred eighty-eight thousand, two hundred fifty-four".