28762557036 has 24 divisors (see below), whose sum is σ = 67115375040. Its totient is φ = 9587127312.

The previous prime is 28762557017. The next prime is 28762557071. The reversal of 28762557036 is 63075526782.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28762557036.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 554275 + ... + 603941.

It is an arithmetic number, because the mean of its divisors is an integer number (2796473960).

Almost surely, 2^28762557036 is an apocalyptic number.

It is an amenable number.

28762557036 is an abundant number, since it is smaller than the sum of its proper divisors (38352818004).

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

28762557036 is a wasteful number, since it uses less digits than its factorization.

28762557036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97933 (or 97931 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 51.

The spelling of 28762557036 in words is "twenty-eight billion, seven hundred sixty-two million, five hundred fifty-seven thousand, thirty-six".