28760617773 has 12 divisors (see below), whose sum is σ = 41549318460. Its totient is φ = 19170881856.

The previous prime is 28760617771. The next prime is 28760617777. The reversal of 28760617773 is 37771606782.

28760617773 is a `hidden beast` number, since 28 + 7 + 606 + 1 + 7 + 7 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14456936169 + 14303681604 = 120237^2 + 119598^2 .

It is not a de Polignac number, because 28760617773 - 2¹ = 28760617771 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28760617771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174078 + ... + 296351.

It is an arithmetic number, because the mean of its divisors is an integer number (3462443205).

Almost surely, 2^28760617773 is an apocalyptic number.

It is an amenable number.

28760617773 is a deficient number, since it is larger than the sum of its proper divisors (12788700687).

28760617773 is a wasteful number, since it uses less digits than its factorization.

28760617773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477228 (or 477225 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 54.

The spelling of 28760617773 in words is "twenty-eight billion, seven hundred sixty million, six hundred seventeen thousand, seven hundred seventy-three".