28551087983 has 16 divisors (see below), whose sum is σ = 31830374400. Its totient is φ = 25391789280.

The previous prime is 28551087977. The next prime is 28551087991. The reversal of 28551087983 is 38978015582.

It is a happy number.

It is not a de Polignac number, because 28551087983 - 2⁴ = 28551087967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28551087923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55991 + ... + 245432.

It is an arithmetic number, because the mean of its divisors is an integer number (1989398400).

Almost surely, 2^28551087983 is an apocalyptic number.

28551087983 is a deficient number, since it is larger than the sum of its proper divisors (3279286417).

28551087983 is a wasteful number, since it uses less digits than its factorization.

28551087983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301622.

The product of its (nonzero) digits is 4838400, while the sum is 56.

The spelling of 28551087983 in words is "twenty-eight billion, five hundred fifty-one million, eighty-seven thousand, nine hundred eighty-three".