78024492673 has 2 divisors, whose sum is σ = 78024492674. Its totient is φ = 78024492672.

The previous prime is 78024492671. The next prime is 78024492739. The reversal of 78024492673 is 37629442087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55586549824 + 22437942849 = 235768^2 + 149793^2 .

It is a cyclic number.

It is not a de Polignac number, because 78024492673 - 2¹ = 78024492671 is a prime.

Together with 78024492671, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 78024492673.

It is not a weakly prime, because it can be changed into another prime (78024492671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39012246336 + 39012246337.

It is an arithmetic number, because the mean of its divisors is an integer number (39012246337).

Almost surely, 2^78024492673 is an apocalyptic number.

It is an amenable number.

78024492673 is a deficient number, since it is larger than the sum of its proper divisors (1).

78024492673 is an equidigital number, since it uses as much as digits as its factorization.

78024492673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 78024492673 in words is "seventy-eight billion, twenty-four million, four hundred ninety-two thousand, six hundred seventy-three".