278047115179 has 2 divisors, whose sum is σ = 278047115180. Its totient is φ = 278047115178.

The previous prime is 278047115117. The next prime is 278047115201. The reversal of 278047115179 is 971511740872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 278047115179 - 2⁷ = 278047115051 is a prime.

It is not a weakly prime, because it can be changed into another prime (278047112179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139023557589 + 139023557590.

It is an arithmetic number, because the mean of its divisors is an integer number (139023557590).

Almost surely, 2^278047115179 is an apocalyptic number.

278047115179 is a deficient number, since it is larger than the sum of its proper divisors (1).

278047115179 is an equidigital number, since it uses as much as digits as its factorization.

278047115179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 987840, while the sum is 52.

The spelling of 278047115179 in words is "two hundred seventy-eight billion, forty-seven million, one hundred fifteen thousand, one hundred seventy-nine".