278353353071 has 2 divisors, whose sum is σ = 278353353072. Its totient is φ = 278353353070.

The previous prime is 278353353037. The next prime is 278353353073. The reversal of 278353353071 is 170353353872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 278353353071 - 2³⁸ = 3475446127 is a prime.

Together with 278353353073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (278353353073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139176676535 + 139176676536.

It is an arithmetic number, because the mean of its divisors is an integer number (139176676536).

Almost surely, 2^278353353071 is an apocalyptic number.

278353353071 is a deficient number, since it is larger than the sum of its proper divisors (1).

278353353071 is an equidigital number, since it uses as much as digits as its factorization.

278353353071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1587600, while the sum is 47.

The spelling of 278353353071 in words is "two hundred seventy-eight billion, three hundred fifty-three million, three hundred fifty-three thousand, seventy-one".