28660456692 has 48 divisors (see below), whose sum is σ = 84919873920. Its totient is φ = 8188701696.

The previous prime is 28660456687. The next prime is 28660456717. The reversal of 28660456692 is 29665406682.

It is a happy number.

28660456692 is a `hidden beast` number, since 28 + 6 + 604 + 5 + 6 + 6 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 18954573 + ... + 18956084.

It is an arithmetic number, because the mean of its divisors is an integer number (1769164040).

Almost surely, 2^28660456692 is an apocalyptic number.

It is an amenable number.

28660456692 is an abundant number, since it is smaller than the sum of its proper divisors (56259417228).

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

28660456692 is a wasteful number, since it uses less digits than its factorization.

28660456692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37910677 (or 37910669 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 28660456692 in words is "twenty-eight billion, six hundred sixty million, four hundred fifty-six thousand, six hundred ninety-two".