278053332859 has 2 divisors, whose sum is σ = 278053332860. Its totient is φ = 278053332858.

The previous prime is 278053332857. The next prime is 278053332901. The reversal of 278053332859 is 958233350872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 278053332859 - 2¹ = 278053332857 is a prime.

It is a super-2 number, since 2×278053332859² (a number of 24 digits) contains 22 as substring.

Together with 278053332857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (278053332857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139026666429 + 139026666430.

It is an arithmetic number, because the mean of its divisors is an integer number (139026666430).

Almost surely, 2^278053332859 is an apocalyptic number.

278053332859 is a deficient number, since it is larger than the sum of its proper divisors (1).

278053332859 is an equidigital number, since it uses as much as digits as its factorization.

278053332859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 278053332859 in words is "two hundred seventy-eight billion, fifty-three million, three hundred thirty-two thousand, eight hundred fifty-nine".