78035776493 has 2 divisors, whose sum is σ = 78035776494. Its totient is φ = 78035776492.

The previous prime is 78035776459. The next prime is 78035776499. The reversal of 78035776493 is 39467753087.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74683598089 + 3352178404 = 273283^2 + 57898^2 .

It is a cyclic number.

It is not a de Polignac number, because 78035776493 - 2¹⁶ = 78035710957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78035776499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39017888246 + 39017888247.

It is an arithmetic number, because the mean of its divisors is an integer number (39017888247).

Almost surely, 2^78035776493 is an apocalyptic number.

It is an amenable number.

78035776493 is a deficient number, since it is larger than the sum of its proper divisors (1).

78035776493 is an equidigital number, since it uses as much as digits as its factorization.

78035776493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26671680, while the sum is 59.

The spelling of 78035776493 in words is "seventy-eight billion, thirty-five million, seven hundred seventy-six thousand, four hundred ninety-three".