78116061187 has 16 divisors (see below), whose sum is σ = 80670765312. Its totient is φ = 75605001120.

The previous prime is 78116061181. The next prime is 78116061197.

It is a happy number.

78116061187 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 78116061187 - 2³¹ = 75968577539 is a prime.

It is a super-2 number, since 2×78116061187² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78116061181) 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, 3860298 + ... + 3880480.

It is an arithmetic number, because the mean of its divisors is an integer number (5041922832).

Almost surely, 2^78116061187 is an apocalyptic number.

78116061187 is a deficient number, since it is larger than the sum of its proper divisors (2554704125).

78116061187 is a wasteful number, since it uses less digits than its factorization.

78116061187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21258.

The product of its (nonzero) digits is 112896, while the sum is 46.

The spelling of 78116061187 in words is "seventy-eight billion, one hundred sixteen million, sixty-one thousand, one hundred eighty-seven".