28076681546 has 12 divisors (see below), whose sum is σ = 42536162166. Its totient is φ = 13899337200.

The previous prime is 28076681531. The next prime is 28076681579. The reversal of 28076681546 is 64518667082.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 26663297521 + 1413384025 = 163289^2 + 37595^2 .

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, 667685 + ... + 708488.

Almost surely, 2^28076681546 is an apocalyptic number.

28076681546 is a deficient number, since it is larger than the sum of its proper divisors (14459480620).

28076681546 is a wasteful number, since it uses less digits than its factorization.

28076681546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376377 (or 1376276 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 28076681546 in words is "twenty-eight billion, seventy-six million, six hundred eighty-one thousand, five hundred forty-six".