28870611967061 has 2 divisors, whose sum is σ = 28870611967062. Its totient is φ = 28870611967060.

The previous prime is 28870611966997. The next prime is 28870611967063. The reversal of 28870611967061 is 16076911607882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22734062400625 + 6136549566436 = 4768025^2 + 2477206^2 .

It is a cyclic number.

It is not a de Polignac number, because 28870611967061 - 2⁶ = 28870611966997 is a prime.

Together with 28870611967063, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28870611966985 and 28870611967003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28870611967063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14435305983530 + 14435305983531.

It is an arithmetic number, because the mean of its divisors is an integer number (14435305983531).

Almost surely, 2^{28870611967061} is an apocalyptic number.

It is an amenable number.

28870611967061 is a deficient number, since it is larger than the sum of its proper divisors (1).

28870611967061 is an equidigital number, since it uses as much as digits as its factorization.

28870611967061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 62.

The spelling of 28870611967061 in words is "twenty-eight trillion, eight hundred seventy billion, six hundred eleven million, nine hundred sixty-seven thousand, sixty-one".