28063007530 has 8 divisors (see below), whose sum is σ = 50513413572. Its totient is φ = 11225203008.

The previous prime is 28063007507. The next prime is 28063007537. The reversal of 28063007530 is 3570036082.

It can be written as a sum of positive squares in 2 ways, for example, as 22780770489 + 5282237041 = 150933^2 + 72679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×28063007530³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28063007537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403150367 + ... + 1403150386.

Almost surely, 2^28063007530 is an apocalyptic number.

28063007530 is a deficient number, since it is larger than the sum of its proper divisors (22450406042).

28063007530 is a wasteful number, since it uses less digits than its factorization.

28063007530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806300760.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 28063007530 in words is "twenty-eight billion, sixty-three million, seven thousand, five hundred thirty".