78348250933 has 2 divisors, whose sum is σ = 78348250934. Its totient is φ = 78348250932.

The previous prime is 78348250913. The next prime is 78348250951. The reversal of 78348250933 is 33905284387.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68569612164 + 9778638769 = 261858^2 + 98887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78348250933 is a prime.

It is a super-2 number, since 2×78348250933² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78348250913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39174125466 + 39174125467.

It is an arithmetic number, because the mean of its divisors is an integer number (39174125467).

Almost surely, 2^78348250933 is an apocalyptic number.

It is an amenable number.

78348250933 is a deficient number, since it is larger than the sum of its proper divisors (1).

78348250933 is an equidigital number, since it uses as much as digits as its factorization.

78348250933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 78348250933 in words is "seventy-eight billion, three hundred forty-eight million, two hundred fifty thousand, nine hundred thirty-three".