78455485411 has 2 divisors, whose sum is σ = 78455485412. Its totient is φ = 78455485410.

The previous prime is 78455485363. The next prime is 78455485447. The reversal of 78455485411 is 11458455487.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78455485411 is a prime.

It is a super-3 number, since 3×78455485411³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (78455485481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39227742705 + 39227742706.

It is an arithmetic number, because the mean of its divisors is an integer number (39227742706).

Almost surely, 2^78455485411 is an apocalyptic number.

78455485411 is a deficient number, since it is larger than the sum of its proper divisors (1).

78455485411 is an equidigital number, since it uses as much as digits as its factorization.

78455485411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584000, while the sum is 52.

The spelling of 78455485411 in words is "seventy-eight billion, four hundred fifty-five million, four hundred eighty-five thousand, four hundred eleven".