28690000528 has 40 divisors (see below), whose sum is σ = 65577152000. Its totient is φ = 11899077120.

The previous prime is 28690000519. The next prime is 28690000529. The reversal of 28690000528 is 82500009682.

It is a super-2 number, since 2×28690000528² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28690000529) 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, 4128153 + ... + 4135096.

It is an arithmetic number, because the mean of its divisors is an integer number (1639428800).

Almost surely, 2^28690000528 is an apocalyptic number.

28690000528 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28690000528 is an abundant number, since it is smaller than the sum of its proper divisors (36887151472).

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

28690000528 is a wasteful number, since it uses less digits than its factorization.

28690000528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8263295 (or 8263289 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 28690000528 in words is "twenty-eight billion, six hundred ninety million, five hundred twenty-eight", and thus it is an aban number.