78485703407 has 2 divisors, whose sum is σ = 78485703408. Its totient is φ = 78485703406.

The previous prime is 78485703391. The next prime is 78485703419. The reversal of 78485703407 is 70430758487.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78485703407 - 2⁴ = 78485703391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78485703427) 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, 39242851703 + 39242851704.

It is an arithmetic number, because the mean of its divisors is an integer number (39242851704).

Almost surely, 2^78485703407 is an apocalyptic number.

78485703407 is a deficient number, since it is larger than the sum of its proper divisors (1).

78485703407 is an equidigital number, since it uses as much as digits as its factorization.

78485703407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5268480, while the sum is 53.

The spelling of 78485703407 in words is "seventy-eight billion, four hundred eighty-five million, seven hundred three thousand, four hundred seven".