78560441622887 has 16 divisors (see below), whose sum is σ = 90257008438272. Its totient is φ = 66983175659520.

The previous prime is 78560441622881. The next prime is 78560441622991. The reversal of 78560441622887 is 78822614406587.

It is a cyclic number.

It is not a de Polignac number, because 78560441622887 - 2¹⁸ = 78560441360743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78560441622881) 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, 35989658 + ... + 38110055.

It is an arithmetic number, because the mean of its divisors is an integer number (5641063027392).

Almost surely, 2^{78560441622887} is an apocalyptic number.

78560441622887 is a deficient number, since it is larger than the sum of its proper divisors (11696566815385).

78560441622887 is a wasteful number, since it uses less digits than its factorization.

78560441622887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74100518.

The product of its (nonzero) digits is 289013760, while the sum is 68.

The spelling of 78560441622887 in words is "seventy-eight trillion, five hundred sixty billion, four hundred forty-one million, six hundred twenty-two thousand, eight hundred eighty-seven".