28661005184503 has 2 divisors, whose sum is σ = 28661005184504. Its totient is φ = 28661005184502.

The previous prime is 28661005184423. The next prime is 28661005184507. The reversal of 28661005184503 is 30548150016682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28661005184503 - 2⁹ = 28661005183991 is a prime.

It is a super-2 number, since 2×28661005184503² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28661005184507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14330502592251 + 14330502592252.

It is an arithmetic number, because the mean of its divisors is an integer number (14330502592252).

Almost surely, 2^{28661005184503} is an apocalyptic number.

28661005184503 is a deficient number, since it is larger than the sum of its proper divisors (1).

28661005184503 is an equidigital number, since it uses as much as digits as its factorization.

28661005184503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 28661005184503 in words is "twenty-eight trillion, six hundred sixty-one billion, five million, one hundred eighty-four thousand, five hundred three".