78506864005119 has 32 divisors (see below), whose sum is σ = 115396871270400. Its totient is φ = 47078413776000.

The previous prime is 78506864005057. The next prime is 78506864005201. The reversal of 78506864005119 is 91150046860587.

It is not a de Polignac number, because 78506864005119 - 2¹² = 78506864001023 is a prime.

It is a super-2 number, since 2×78506864005119² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78506864005019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2440287 + ... + 12765920.

It is an arithmetic number, because the mean of its divisors is an integer number (3606152227200).

Almost surely, 2^{78506864005119} is an apocalyptic number.

78506864005119 is a deficient number, since it is larger than the sum of its proper divisors (36890007265281).

78506864005119 is a wasteful number, since it uses less digits than its factorization.

78506864005119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15207871.

The product of its (nonzero) digits is 14515200, while the sum is 60.

The spelling of 78506864005119 in words is "seventy-eight trillion, five hundred six billion, eight hundred sixty-four million, five thousand, one hundred nineteen".