78058002773 has 2 divisors, whose sum is σ = 78058002774. Its totient is φ = 78058002772.

The previous prime is 78058002769. The next prime is 78058002817. The reversal of 78058002773 is 37720085087.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50975705284 + 27082297489 = 225778^2 + 164567^2 .

It is a cyclic number.

It is not a de Polignac number, because 78058002773 - 2² = 78058002769 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78058002703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39029001386 + 39029001387.

It is an arithmetic number, because the mean of its divisors is an integer number (39029001387).

Almost surely, 2^78058002773 is an apocalyptic number.

It is an amenable number.

78058002773 is a deficient number, since it is larger than the sum of its proper divisors (1).

78058002773 is an equidigital number, since it uses as much as digits as its factorization.

78058002773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 78058002773 in words is "seventy-eight billion, fifty-eight million, two thousand, seven hundred seventy-three".