28875771486 has 20 divisors (see below), whose sum is σ = 64703117952. Its totient is φ = 9625257108.

The previous prime is 28875771479. The next prime is 28875771503. The reversal of 28875771486 is 68417757882.

28875771486 is a `hidden beast` number, since 2 + 8 + 87 + 5 + 7 + 71 + 486 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 89122590 + ... + 89122913.

Almost surely, 2^28875771486 is an apocalyptic number.

28875771486 is an abundant number, since it is smaller than the sum of its proper divisors (35827346466).

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

28875771486 is a wasteful number, since it uses less digits than its factorization.

28875771486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178245517 (or 178245508 counting only the distinct ones).

The product of its digits is 42147840, while the sum is 63.

The spelling of 28875771486 in words is "twenty-eight billion, eight hundred seventy-five million, seven hundred seventy-one thousand, four hundred eighty-six".