28920276575 has 6 divisors (see below), whose sum is σ = 35861142984. Its totient is φ = 23136221240.

The previous prime is 28920276421. The next prime is 28920276607. The reversal of 28920276575 is 57567202982.

It is not a de Polignac number, because 28920276575 - 2¹⁶ = 28920211039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 578405507 + ... + 578405556.

It is an arithmetic number, because the mean of its divisors is an integer number (5976857164).

Almost surely, 2^28920276575 is an apocalyptic number.

28920276575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28920276575 is a deficient number, since it is larger than the sum of its proper divisors (6940866409).

28920276575 is a wasteful number, since it uses less digits than its factorization.

28920276575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156811073 (or 1156811068 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 28920276575 in words is "twenty-eight billion, nine hundred twenty million, two hundred seventy-six thousand, five hundred seventy-five".