278925960143 has 2 divisors, whose sum is σ = 278925960144. Its totient is φ = 278925960142.

The previous prime is 278925960119. The next prime is 278925960149. The reversal of 278925960143 is 341069529872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 278925960143 - 2²⁰ = 278924911567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (278925960149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139462980071 + 139462980072.

It is an arithmetic number, because the mean of its divisors is an integer number (139462980072).

It is a 1-persistent number, because it is pandigital, but 2⋅278925960143 = 557851920286 is not.

Almost surely, 2^278925960143 is an apocalyptic number.

278925960143 is a deficient number, since it is larger than the sum of its proper divisors (1).

278925960143 is an equidigital number, since it uses as much as digits as its factorization.

278925960143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 278925960143 in words is "two hundred seventy-eight billion, nine hundred twenty-five million, nine hundred sixty thousand, one hundred forty-three".