28530990060 has 48 divisors (see below), whose sum is σ = 79987140576. Its totient is φ = 7598705152.

The previous prime is 28530990053. The next prime is 28530990073. The reversal of 28530990060 is 6009903582.

It is a junction number, because it is equal to n+sod(n) for n = 28530989994 and 28530990021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250497 + ... + 346136.

It is an arithmetic number, because the mean of its divisors is an integer number (1666398762).

Almost surely, 2^28530990060 is an apocalyptic number.

28530990060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28530990060 is an abundant number, since it is smaller than the sum of its proper divisors (51456150516).

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

28530990060 is a wasteful number, since it uses less digits than its factorization.

28530990060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597442 (or 597440 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 28530990060 in words is "twenty-eight billion, five hundred thirty million, nine hundred ninety thousand, sixty".