28061450530 has 16 divisors (see below), whose sum is σ = 50727398904. Its totient is φ = 11176405120.

The previous prime is 28061450513. The next prime is 28061450551. The reversal of 28061450530 is 3505416082.

It can be written as a sum of positive squares in 4 ways, for example, as 17357272009 + 10704178521 = 131747^2 + 103461^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6019441 + ... + 6024100.

Almost surely, 2^28061450530 is an apocalyptic number.

28061450530 is a deficient number, since it is larger than the sum of its proper divisors (22665948374).

28061450530 is a wasteful number, since it uses less digits than its factorization.

28061450530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12043781.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 28061450530 in words is "twenty-eight billion, sixty-one million, four hundred fifty thousand, five hundred thirty".