78291044983 has 2 divisors, whose sum is σ = 78291044984. Its totient is φ = 78291044982.

The previous prime is 78291044939. The next prime is 78291045113. The reversal of 78291044983 is 38944019287.

It is a weak prime.

It is an emirp because it is prime and its reverse (38944019287) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78291044983 - 2⁹ = 78291044471 is a prime.

It is a super-2 number, since 2×78291044983² (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 (78291014983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39145522491 + 39145522492.

It is an arithmetic number, because the mean of its divisors is an integer number (39145522492).

Almost surely, 2^78291044983 is an apocalyptic number.

78291044983 is a deficient number, since it is larger than the sum of its proper divisors (1).

78291044983 is an equidigital number, since it uses as much as digits as its factorization.

78291044983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 78291044983 in words is "seventy-eight billion, two hundred ninety-one million, forty-four thousand, nine hundred eighty-three".