28356526164 has 48 divisors (see below), whose sum is σ = 66637383680. Its totient is φ = 9384789600.

The previous prime is 28356526127. The next prime is 28356526169. The reversal of 28356526164 is 46162565382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28356526169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6272697 + ... + 6277215.

Almost surely, 2^28356526164 is an apocalyptic number.

It is an amenable number.

28356526164 is an abundant number, since it is smaller than the sum of its proper divisors (38280857516).

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

28356526164 is a wasteful number, since it uses less digits than its factorization.

28356526164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8140 (or 8138 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The spelling of 28356526164 in words is "twenty-eight billion, three hundred fifty-six million, five hundred twenty-six thousand, one hundred sixty-four".