28030530275292 has 48 divisors (see below), whose sum is σ = 69614473807872. Its totient is φ = 8747850520320.

The previous prime is 28030530275291. The next prime is 28030530275323. The reversal of 28030530275292 is 29257203503082.

It is a super-2 number, since 2×28030530275292² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28030530275291) 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, 359658838 + ... + 359736765.

It is an arithmetic number, because the mean of its divisors is an integer number (1450301537664).

Almost surely, 2^{28030530275292} is an apocalyptic number.

It is an amenable number.

28030530275292 is an abundant number, since it is smaller than the sum of its proper divisors (41583943532580).

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

28030530275292 is a wasteful number, since it uses less digits than its factorization.

28030530275292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719395818 (or 719395816 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 28030530275292 in words is "twenty-eight trillion, thirty billion, five hundred thirty million, two hundred seventy-five thousand, two hundred ninety-two".