78541710445871 has 16 divisors (see below), whose sum is σ = 85010248350720. Its totient is φ = 72294429398400.

The previous prime is 78541710445823. The next prime is 78541710445889. The reversal of 78541710445871 is 17854401714587.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78541710445871 - 2¹⁴ = 78541710429487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78541710445271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247887455 + ... + 248204096.

It is an arithmetic number, because the mean of its divisors is an integer number (5313140521920).

Almost surely, 2^{78541710445871} is an apocalyptic number.

78541710445871 is a deficient number, since it is larger than the sum of its proper divisors (6468537904849).

78541710445871 is a wasteful number, since it uses less digits than its factorization.

78541710445871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496091774.

The product of its (nonzero) digits is 35123200, while the sum is 62.

The spelling of 78541710445871 in words is "seventy-eight trillion, five hundred forty-one billion, seven hundred ten million, four hundred forty-five thousand, eight hundred seventy-one".