28214950331507 has 2 divisors, whose sum is σ = 28214950331508. Its totient is φ = 28214950331506.

The previous prime is 28214950331429. The next prime is 28214950331537. The reversal of 28214950331507 is 70513305941282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28214950331507 - 2⁸ = 28214950331251 is a prime.

It is not a weakly prime, because it can be changed into another prime (28214950331537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14107475165753 + 14107475165754.

It is an arithmetic number, because the mean of its divisors is an integer number (14107475165754).

Almost surely, 2^{28214950331507} is an apocalyptic number.

28214950331507 is a deficient number, since it is larger than the sum of its proper divisors (1).

28214950331507 is an equidigital number, since it uses as much as digits as its factorization.

28214950331507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 28214950331507 in words is "twenty-eight trillion, two hundred fourteen billion, nine hundred fifty million, three hundred thirty-one thousand, five hundred seven".