78072627427 has 2 divisors, whose sum is σ = 78072627428. Its totient is φ = 78072627426.

The previous prime is 78072627401. The next prime is 78072627469. The reversal of 78072627427 is 72472627087.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78072627427 is a prime.

It is not a weakly prime, because it can be changed into another prime (78372627427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39036313713 + 39036313714.

It is an arithmetic number, because the mean of its divisors is an integer number (39036313714).

Almost surely, 2^78072627427 is an apocalyptic number.

78072627427 is a deficient number, since it is larger than the sum of its proper divisors (1).

78072627427 is an equidigital number, since it uses as much as digits as its factorization.

78072627427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3687936, while the sum is 52.

The spelling of 78072627427 in words is "seventy-eight billion, seventy-two million, six hundred twenty-seven thousand, four hundred twenty-seven".