78333581023 has 2 divisors, whose sum is σ = 78333581024. Its totient is φ = 78333581022.

The previous prime is 78333581017. The next prime is 78333581089. The reversal of 78333581023 is 32018533387.

It is a weak prime.

It is an emirp because it is prime and its reverse (32018533387) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78333581023 - 2¹⁷ = 78333449951 is a prime.

It is a super-2 number, since 2×78333581023² (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 (78333581093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39166790511 + 39166790512.

It is an arithmetic number, because the mean of its divisors is an integer number (39166790512).

Almost surely, 2^78333581023 is an apocalyptic number.

78333581023 is a deficient number, since it is larger than the sum of its proper divisors (1).

78333581023 is an equidigital number, since it uses as much as digits as its factorization.

78333581023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 78333581023 in words is "seventy-eight billion, three hundred thirty-three million, five hundred eighty-one thousand, twenty-three".