78604350271019 has 2 divisors, whose sum is σ = 78604350271020. Its totient is φ = 78604350271018.

The previous prime is 78604350270961. The next prime is 78604350271067. The reversal of 78604350271019 is 91017205340687.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78604350271019 - 2¹⁶ = 78604350205483 is a prime.

It is a super-2 number, since 2×78604350271019² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (78604350271099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39302175135509 + 39302175135510.

It is an arithmetic number, because the mean of its divisors is an integer number (39302175135510).

It is a 1-persistent number, because it is pandigital, but 2⋅78604350271019 = 157208700542038 is not.

Almost surely, 2^{78604350271019} is an apocalyptic number.

78604350271019 is a deficient number, since it is larger than the sum of its proper divisors (1).

78604350271019 is an equidigital number, since it uses as much as digits as its factorization.

78604350271019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 78604350271019 in words is "seventy-eight trillion, six hundred four billion, three hundred fifty million, two hundred seventy-one thousand, nineteen".