78325052387 has 2 divisors, whose sum is σ = 78325052388. Its totient is φ = 78325052386.

The previous prime is 78325052329. The next prime is 78325052423.

It is a happy number.

78325052387 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 78325052387 - 2²⁰ = 78324003811 is a prime.

It is a super-2 number, since 2×78325052387² (a number of 23 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (78325052887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39162526193 + 39162526194.

It is an arithmetic number, because the mean of its divisors is an integer number (39162526194).

Almost surely, 2^78325052387 is an apocalyptic number.

78325052387 is a deficient number, since it is larger than the sum of its proper divisors (1).

78325052387 is an equidigital number, since it uses as much as digits as its factorization.

78325052387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 78325052387 in words is "seventy-eight billion, three hundred twenty-five million, fifty-two thousand, three hundred eighty-seven".