28514874761 has 4 divisors (see below), whose sum is σ = 29121574272. Its totient is φ = 27908175252.

The previous prime is 28514874733. The next prime is 28514874769. The reversal of 28514874761 is 16747841582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28514874761 - 2³⁰ = 27441132937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28514874769) 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, 303349685 + ... + 303349778.

It is an arithmetic number, because the mean of its divisors is an integer number (7280393568).

Almost surely, 2^28514874761 is an apocalyptic number.

It is an amenable number.

28514874761 is a deficient number, since it is larger than the sum of its proper divisors (606699511).

28514874761 is an equidigital number, since it uses as much as digits as its factorization.

28514874761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606699510.

The product of its digits is 3010560, while the sum is 53.

The spelling of 28514874761 in words is "twenty-eight billion, five hundred fourteen million, eight hundred seventy-four thousand, seven hundred sixty-one".