28912653776 has 10 divisors (see below), whose sum is σ = 56018266722. Its totient is φ = 14456326880.

The previous prime is 28912653773. The next prime is 28912653779. The reversal of 28912653776 is 67735621982.

It is an interprime number because it is at equal distance from previous prime (28912653773) and next prime (28912653779).

It can be written as a sum of positive squares in only one way, i.e., 19382208400 + 9530445376 = 139220^2 + 97624^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28912653773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903520415 + ... + 903520446.

Almost surely, 2^28912653776 is an apocalyptic number.

It is an amenable number.

28912653776 is a deficient number, since it is larger than the sum of its proper divisors (27105612946).

28912653776 is a wasteful number, since it uses less digits than its factorization.

28912653776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807040869 (or 1807040863 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 56.

The spelling of 28912653776 in words is "twenty-eight billion, nine hundred twelve million, six hundred fifty-three thousand, seven hundred seventy-six".