2678178455083 has 2 divisors, whose sum is σ = 2678178455084. Its totient is φ = 2678178455082.

The previous prime is 2678178455077. The next prime is 2678178455123. The reversal of 2678178455083 is 3805548718762.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2678178455083 is a prime.

It is not a weakly prime, because it can be changed into another prime (2678178455383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1339089227541 + 1339089227542.

It is an arithmetic number, because the mean of its divisors is an integer number (1339089227542).

Almost surely, 2^{2678178455083} is an apocalyptic number.

2678178455083 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678178455083 is an equidigital number, since it uses as much as digits as its factorization.

2678178455083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90316800, while the sum is 64.

The spelling of 2678178455083 in words is "two trillion, six hundred seventy-eight billion, one hundred seventy-eight million, four hundred fifty-five thousand, eighty-three".