28687584941 has 2 divisors, whose sum is σ = 28687584942. Its totient is φ = 28687584940.

The previous prime is 28687584907. The next prime is 28687584953. The reversal of 28687584941 is 14948578682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28678067716 + 9517225 = 169346^2 + 3085^2 .

It is a cyclic number.

It is not a de Polignac number, because 28687584941 - 2¹⁴ = 28687568557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28687589941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14343792470 + 14343792471.

It is an arithmetic number, because the mean of its divisors is an integer number (14343792471).

Almost surely, 2^28687584941 is an apocalyptic number.

It is an amenable number.

28687584941 is a deficient number, since it is larger than the sum of its proper divisors (1).

28687584941 is an equidigital number, since it uses as much as digits as its factorization.

28687584941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30965760, while the sum is 62.

The spelling of 28687584941 in words is "twenty-eight billion, six hundred eighty-seven million, five hundred eighty-four thousand, nine hundred forty-one".