28877020365 has 16 divisors (see below), whose sum is σ = 46635041088. Its totient is φ = 15257141376.

The previous prime is 28877020313. The next prime is 28877020399. The reversal of 28877020365 is 56302077882.

It is not a de Polignac number, because 28877020365 - 2¹⁰ = 28877019341 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8994352 + ... + 8997561.

It is an arithmetic number, because the mean of its divisors is an integer number (2914690068).

Almost surely, 2^28877020365 is an apocalyptic number.

It is an amenable number.

28877020365 is a deficient number, since it is larger than the sum of its proper divisors (17758020723).

28877020365 is a wasteful number, since it uses less digits than its factorization.

28877020365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17992028.

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 28877020365 in words is "twenty-eight billion, eight hundred seventy-seven million, twenty thousand, three hundred sixty-five".