28782278037 has 12 divisors (see below), whose sum is σ = 41783320800. Its totient is φ = 19091761128.

The previous prime is 28782278023. The next prime is 28782278047. The reversal of 28782278037 is 73087228782.

It is not a de Polignac number, because 28782278037 - 2⁸ = 28782277781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28782278017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8033463 + ... + 8037044.

It is an arithmetic number, because the mean of its divisors is an integer number (3481943400).

Almost surely, 2^28782278037 is an apocalyptic number.

It is an amenable number.

28782278037 is a deficient number, since it is larger than the sum of its proper divisors (13001042763).

28782278037 is a wasteful number, since it uses less digits than its factorization.

28782278037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16070712 (or 16070709 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 54.

The spelling of 28782278037 in words is "twenty-eight billion, seven hundred eighty-two million, two hundred seventy-eight thousand, thirty-seven".