28532716007 has 4 divisors (see below), whose sum is σ = 28533053856. Its totient is φ = 28532378160.

The previous prime is 28532715973. The next prime is 28532716021. The reversal of 28532716007 is 70061723582.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70061723582 = 2 ⋅35030861791.

It is a cyclic number.

It is not a de Polignac number, because 28532716007 - 2³⁰ = 27458974183 is a prime.

It is a super-2 number, since 2×28532716007² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28532716087) 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, 82043 + ... + 252579.

It is an arithmetic number, because the mean of its divisors is an integer number (7133263464).

Almost surely, 2^28532716007 is an apocalyptic number.

28532716007 is a deficient number, since it is larger than the sum of its proper divisors (337849).

28532716007 is a wasteful number, since it uses less digits than its factorization.

28532716007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337848.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 28532716007 in words is "twenty-eight billion, five hundred thirty-two million, seven hundred sixteen thousand, seven".