78588572423 has 2 divisors, whose sum is σ = 78588572424. Its totient is φ = 78588572422.

The previous prime is 78588572401. The next prime is 78588572441. The reversal of 78588572423 is 32427588587.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78588572423 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78588572453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39294286211 + 39294286212.

It is an arithmetic number, because the mean of its divisors is an integer number (39294286212).

Almost surely, 2^78588572423 is an apocalyptic number.

78588572423 is a deficient number, since it is larger than the sum of its proper divisors (1).

78588572423 is an equidigital number, since it uses as much as digits as its factorization.

78588572423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30105600, while the sum is 59.

The spelling of 78588572423 in words is "seventy-eight billion, five hundred eighty-eight million, five hundred seventy-two thousand, four hundred twenty-three".