78316787303 has 2 divisors, whose sum is σ = 78316787304. Its totient is φ = 78316787302.

The previous prime is 78316787273. The next prime is 78316787321. The reversal of 78316787303 is 30378761387.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78316787303 - 2²⁸ = 78048351847 is a prime.

It is a super-2 number, since 2×78316787303² (a number of 23 digits) contains 22 as substring.

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 (78316787503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39158393651 + 39158393652.

It is an arithmetic number, because the mean of its divisors is an integer number (39158393652).

Almost surely, 2^78316787303 is an apocalyptic number.

78316787303 is a deficient number, since it is larger than the sum of its proper divisors (1).

78316787303 is an equidigital number, since it uses as much as digits as its factorization.

78316787303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224, while the sum is 53.

The spelling of 78316787303 in words is "seventy-eight billion, three hundred sixteen million, seven hundred eighty-seven thousand, three hundred three".