28363100077 has 4 divisors (see below), whose sum is σ = 30544877020. Its totient is φ = 26181323136.

The previous prime is 28363100053. The next prime is 28363100107. The reversal of 28363100077 is 77000136382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19270714761 + 9092385316 = 138819^2 + 95354^2 .

It is a cyclic number.

It is not a de Polignac number, because 28363100077 - 2²⁷ = 28228882349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28363100177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1090888452 + ... + 1090888477.

It is an arithmetic number, because the mean of its divisors is an integer number (7636219255).

Almost surely, 2^28363100077 is an apocalyptic number.

It is an amenable number.

28363100077 is a deficient number, since it is larger than the sum of its proper divisors (2181776943).

28363100077 is a wasteful number, since it uses less digits than its factorization.

28363100077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181776942.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 28363100077 in words is "twenty-eight billion, three hundred sixty-three million, one hundred thousand, seventy-seven".