278058025087 has 2 divisors, whose sum is σ = 278058025088. Its totient is φ = 278058025086.

The previous prime is 278058025067. The next prime is 278058025109. The reversal of 278058025087 is 780520850872.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-278058025087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (278058025067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139029012543 + 139029012544.

It is an arithmetic number, because the mean of its divisors is an integer number (139029012544).

Almost surely, 2^278058025087 is an apocalyptic number.

278058025087 is a deficient number, since it is larger than the sum of its proper divisors (1).

278058025087 is an equidigital number, since it uses as much as digits as its factorization.

278058025087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2508800, while the sum is 52.

The spelling of 278058025087 in words is "two hundred seventy-eight billion, fifty-eight million, twenty-five thousand, eighty-seven".