78833316407653 has 2 divisors, whose sum is σ = 78833316407654. Its totient is φ = 78833316407652.

The previous prime is 78833316407581. The next prime is 78833316407719. The reversal of 78833316407653 is 35670461333887.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68240849683204 + 10592466724449 = 8260802^2 + 3254607^2 .

It is a cyclic number.

It is not a de Polignac number, because 78833316407653 - 2⁴¹ = 76634293152101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78833316404653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39416658203826 + 39416658203827.

It is an arithmetic number, because the mean of its divisors is an integer number (39416658203827).

Almost surely, 2^{78833316407653} is an apocalyptic number.

It is an amenable number.

78833316407653 is a deficient number, since it is larger than the sum of its proper divisors (1).

78833316407653 is an equidigital number, since it uses as much as digits as its factorization.

78833316407653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 182891520, while the sum is 64.

The spelling of 78833316407653 in words is "seventy-eight trillion, eight hundred thirty-three billion, three hundred sixteen million, four hundred seven thousand, six hundred fifty-three".