28677208853 has 2 divisors, whose sum is σ = 28677208854. Its totient is φ = 28677208852.

The previous prime is 28677208811. The next prime is 28677209009. The reversal of 28677208853 is 35880277682.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21857256964 + 6819951889 = 147842^2 + 82583^2 .

It is a cyclic number.

It is not a de Polignac number, because 28677208853 - 2³⁴ = 11497339669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28677205853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14338604426 + 14338604427.

It is an arithmetic number, because the mean of its divisors is an integer number (14338604427).

Almost surely, 2^28677208853 is an apocalyptic number.

It is an amenable number.

28677208853 is a deficient number, since it is larger than the sum of its proper divisors (1).

28677208853 is an equidigital number, since it uses as much as digits as its factorization.

28677208853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 28677208853 in words is "twenty-eight billion, six hundred seventy-seven million, two hundred eight thousand, eight hundred fifty-three".