2078678267 has 2 divisors, whose sum is σ = 2078678268. Its totient is φ = 2078678266.

The previous prime is 2078678249. The next prime is 2078678297. The reversal of 2078678267 is 7628768702.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2078678267 is a prime.

It is not a weakly prime, because it can be changed into another prime (2078678207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039339133 + 1039339134.

It is an arithmetic number, because the mean of its divisors is an integer number (1039339134).

Almost surely, 2^2078678267 is an apocalyptic number.

2078678267 is a deficient number, since it is larger than the sum of its proper divisors (1).

2078678267 is an equidigital number, since it uses as much as digits as its factorization.

2078678267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3161088, while the sum is 53.

The square root of 2078678267 is about 45592.5242446610. The cubic root of 2078678267 is about 1276.2304189367.

The spelling of 2078678267 in words is "two billion, seventy-eight million, six hundred seventy-eight thousand, two hundred sixty-seven".