28504714761 has 6 divisors (see below), whose sum is σ = 41173476890. Its totient is φ = 19003143168.

The previous prime is 28504714751. The next prime is 28504714807. The reversal of 28504714761 is 16741740582.

28504714761 is a `hidden beast` number, since 2 + 8 + 504 + 71 + 4 + 76 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 23796147600 + 4708567161 = 154260^2 + 68619^2 .

It is not a de Polignac number, because 28504714761 - 2⁶ = 28504714697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28504714741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1583595256 + ... + 1583595273.

Almost surely, 2^28504714761 is an apocalyptic number.

It is an amenable number.

28504714761 is a deficient number, since it is larger than the sum of its proper divisors (12668762129).

28504714761 is a wasteful number, since it uses less digits than its factorization.

28504714761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167190535 (or 3167190532 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 28504714761 in words is "twenty-eight billion, five hundred four million, seven hundred fourteen thousand, seven hundred sixty-one".