78970742597 has 2 divisors, whose sum is σ = 78970742598. Its totient is φ = 78970742596.

The previous prime is 78970742567. The next prime is 78970742633. The reversal of 78970742597 is 79524707987.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64397182756 + 14573559841 = 253766^2 + 120721^2 .

It is a cyclic number.

It is not a de Polignac number, because 78970742597 - 2¹⁴ = 78970726213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78970742567) 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, 39485371298 + 39485371299.

It is an arithmetic number, because the mean of its divisors is an integer number (39485371299).

Almost surely, 2^78970742597 is an apocalyptic number.

It is an amenable number.

78970742597 is a deficient number, since it is larger than the sum of its proper divisors (1).

78970742597 is an equidigital number, since it uses as much as digits as its factorization.

78970742597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62233920, while the sum is 65.

The spelling of 78970742597 in words is "seventy-eight billion, nine hundred seventy million, seven hundred forty-two thousand, five hundred ninety-seven".