78625522603 has 2 divisors, whose sum is σ = 78625522604. Its totient is φ = 78625522602.

The previous prime is 78625522589. The next prime is 78625522649. The reversal of 78625522603 is 30622552687.

It is an a-pointer prime, because the next prime (78625522649) can be obtained adding 78625522603 to its sum of digits (46).

It is a weak prime.

It is an emirp because it is prime and its reverse (30622552687) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78625522603 - 2⁵ = 78625522571 is a prime.

It is not a weakly prime, because it can be changed into another prime (78625529603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39312761301 + 39312761302.

It is an arithmetic number, because the mean of its divisors is an integer number (39312761302).

Almost surely, 2^78625522603 is an apocalyptic number.

78625522603 is a deficient number, since it is larger than the sum of its proper divisors (1).

78625522603 is an equidigital number, since it uses as much as digits as its factorization.

78625522603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 78625522603 in words is "seventy-eight billion, six hundred twenty-five million, five hundred twenty-two thousand, six hundred three".