78105804445306 has 16 divisors (see below), whose sum is σ = 135327703959360. Its totient is φ = 33414247890880.

The previous prime is 78105804445283. The next prime is 78105804445337. The reversal of 78105804445306 is 60354440850187.

It is a super-2 number, since 2×78105804445306² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104419524286 + ... + 104419525033.

It is an arithmetic number, because the mean of its divisors is an integer number (8457981497460).

Almost surely, 2^{78105804445306} is an apocalyptic number.

78105804445306 is a deficient number, since it is larger than the sum of its proper divisors (57221899514054).

78105804445306 is a wasteful number, since it uses less digits than its factorization.

78105804445306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208839049349.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 78105804445306 in words is "seventy-eight trillion, one hundred five billion, eight hundred four million, four hundred forty-five thousand, three hundred six".