28550788773 has 16 divisors (see below), whose sum is σ = 41081617920. Its totient is φ = 17533024704.

The previous prime is 28550788759. The next prime is 28550788787. The reversal of 28550788773 is 37788705582.

It is an interprime number because it is at equal distance from previous prime (28550788759) and next prime (28550788787).

It is not a de Polignac number, because 28550788773 - 2⁴ = 28550788757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28550788793) 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, 745486 + ... + 782847.

It is an arithmetic number, because the mean of its divisors is an integer number (2567601120).

Almost surely, 2^28550788773 is an apocalyptic number.

It is an amenable number.

28550788773 is a deficient number, since it is larger than the sum of its proper divisors (12530829147).

28550788773 is a wasteful number, since it uses less digits than its factorization.

28550788773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528828.

The product of its (nonzero) digits is 26342400, while the sum is 60.

The spelling of 28550788773 in words is "twenty-eight billion, five hundred fifty million, seven hundred eighty-eight thousand, seven hundred seventy-three".