28578505092 has 12 divisors (see below), whose sum is σ = 66683178576. Its totient is φ = 9526168360.

The previous prime is 28578505057. The next prime is 28578505127. The reversal of 28578505092 is 29050587582.

It is an interprime number because it is at equal distance from previous prime (28578505057) and next prime (28578505127).

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

It is a super-3 number, since 3×28578505092³ (a number of 32 digits) contains 333 as substring.

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, 1190771034 + ... + 1190771057.

It is an arithmetic number, because the mean of its divisors is an integer number (5556931548).

Almost surely, 2^28578505092 is an apocalyptic number.

It is an amenable number.

28578505092 is an abundant number, since it is smaller than the sum of its proper divisors (38104673484).

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

28578505092 is a wasteful number, since it uses less digits than its factorization.

28578505092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381542098 (or 2381542096 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 51.

The spelling of 28578505092 in words is "twenty-eight billion, five hundred seventy-eight million, five hundred five thousand, ninety-two".