78050503258597 has 2 divisors, whose sum is σ = 78050503258598. Its totient is φ = 78050503258596.

The previous prime is 78050503258579. The next prime is 78050503258621. The reversal of 78050503258597 is 79585230505087.

Together with previous prime (78050503258579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56524624377796 + 21525878880801 = 7518286^2 + 4639599^2 .

It is a cyclic number.

It is not a de Polignac number, because 78050503258597 - 2¹¹ = 78050503256549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78050503258577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39025251629298 + 39025251629299.

It is an arithmetic number, because the mean of its divisors is an integer number (39025251629299).

Almost surely, 2^{78050503258597} is an apocalyptic number.

It is an amenable number.

78050503258597 is a deficient number, since it is larger than the sum of its proper divisors (1).

78050503258597 is an equidigital number, since it uses as much as digits as its factorization.

78050503258597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840000, while the sum is 64.

The spelling of 78050503258597 in words is "seventy-eight trillion, fifty billion, five hundred three million, two hundred fifty-eight thousand, five hundred ninety-seven".