78468155311099 has 2 divisors, whose sum is σ = 78468155311100. Its totient is φ = 78468155311098.

The previous prime is 78468155311067. The next prime is 78468155311181. The reversal of 78468155311099 is 99011355186487.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78468155311099 - 2⁵ = 78468155311067 is a prime.

It is not a weakly prime, because it can be changed into another prime (78468155311009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39234077655549 + 39234077655550.

It is an arithmetic number, because the mean of its divisors is an integer number (39234077655550).

Almost surely, 2^{78468155311099} is an apocalyptic number.

78468155311099 is a deficient number, since it is larger than the sum of its proper divisors (1).

78468155311099 is an equidigital number, since it uses as much as digits as its factorization.

78468155311099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65318400, while the sum is 67.

The spelling of 78468155311099 in words is "seventy-eight trillion, four hundred sixty-eight billion, one hundred fifty-five million, three hundred eleven thousand, ninety-nine".