28775015411 has 2 divisors, whose sum is σ = 28775015412. Its totient is φ = 28775015410.

The previous prime is 28775015387. The next prime is 28775015429. The reversal of 28775015411 is 11451057782.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28775015411 is a prime.

It is not a weakly prime, because it can be changed into another prime (28775015461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14387507705 + 14387507706.

It is an arithmetic number, because the mean of its divisors is an integer number (14387507706).

Almost surely, 2^28775015411 is an apocalyptic number.

28775015411 is a deficient number, since it is larger than the sum of its proper divisors (1).

28775015411 is an equidigital number, since it uses as much as digits as its factorization.

28775015411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 41.

The spelling of 28775015411 in words is "twenty-eight billion, seven hundred seventy-five million, fifteen thousand, four hundred eleven".