28625711452 has 18 divisors (see below), whose sum is σ = 54244877568. Its totient is φ = 13211866512.

The previous prime is 28625711441. The next prime is 28625711497. The reversal of 28625711452 is 25411752682.

It is a super-2 number, since 2×28625711452² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28625711399 and 28625711408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21172188 + ... + 21173539.

Almost surely, 2^28625711452 is an apocalyptic number.

It is an amenable number.

28625711452 is a deficient number, since it is larger than the sum of its proper divisors (25619166116).

28625711452 is a wasteful number, since it uses less digits than its factorization.

28625711452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42345757 (or 42345742 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The spelling of 28625711452 in words is "twenty-eight billion, six hundred twenty-five million, seven hundred eleven thousand, four hundred fifty-two".