78152310647863 has 2 divisors, whose sum is σ = 78152310647864. Its totient is φ = 78152310647862.

The previous prime is 78152310647837. The next prime is 78152310647867. The reversal of 78152310647863 is 36874601325187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78152310647863 - 2²⁵ = 78152277093431 is a prime.

It is a super-2 number, since 2×78152310647863² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78152310647867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39076155323931 + 39076155323932.

It is an arithmetic number, because the mean of its divisors is an integer number (39076155323932).

Almost surely, 2^{78152310647863} is an apocalyptic number.

78152310647863 is a deficient number, since it is larger than the sum of its proper divisors (1).

78152310647863 is an equidigital number, since it uses as much as digits as its factorization.

78152310647863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 78152310647863 in words is "seventy-eight trillion, one hundred fifty-two billion, three hundred ten million, six hundred forty-seven thousand, eight hundred sixty-three".