28606888252 has 12 divisors (see below), whose sum is σ = 50070023640. Its totient is φ = 14301167216.

The previous prime is 28606888207. The next prime is 28606888301. The reversal of 28606888252 is 25288860682.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28606888193 and 28606888202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540802 + ... + 591337.

It is an arithmetic number, because the mean of its divisors is an integer number (4172501970).

Almost surely, 2^28606888252 is an apocalyptic number.

It is an amenable number.

28606888252 is a deficient number, since it is larger than the sum of its proper divisors (21463135388).

28606888252 is a wasteful number, since it uses less digits than its factorization.

28606888252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138460 (or 1138458 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 55.

The spelling of 28606888252 in words is "twenty-eight billion, six hundred six million, eight hundred eighty-eight thousand, two hundred fifty-two".