28671528601 has 2 divisors, whose sum is σ = 28671528602. Its totient is φ = 28671528600.

The previous prime is 28671528563. The next prime is 28671528631. The reversal of 28671528601 is 10682517682.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22831512201 + 5840016400 = 151101^2 + 76420^2 .

It is a cyclic number.

It is not a de Polignac number, because 28671528601 - 2¹⁷ = 28671397529 is a prime.

It is a super-2 number, since 2×28671528601² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28671528631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14335764300 + 14335764301.

It is an arithmetic number, because the mean of its divisors is an integer number (14335764301).

Almost surely, 2^28671528601 is an apocalyptic number.

It is an amenable number.

28671528601 is a deficient number, since it is larger than the sum of its proper divisors (1).

28671528601 is an equidigital number, since it uses as much as digits as its factorization.

28671528601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 28671528601 in words is "twenty-eight billion, six hundred seventy-one million, five hundred twenty-eight thousand, six hundred one".