28052501628 has 12 divisors (see below), whose sum is σ = 65455837160. Its totient is φ = 9350833872.

The previous prime is 28052501623. The next prime is 28052501629. The reversal of 28052501628 is 82610525082.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28052501623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1168854223 + ... + 1168854246.

Almost surely, 2^28052501628 is an apocalyptic number.

It is an amenable number.

28052501628 is an abundant number, since it is smaller than the sum of its proper divisors (37403335532).

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

28052501628 is a wasteful number, since it uses less digits than its factorization.

28052501628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337708476 (or 2337708474 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The spelling of 28052501628 in words is "twenty-eight billion, fifty-two million, five hundred one thousand, six hundred twenty-eight".