78283314512186 has 48 divisors (see below), whose sum is σ = 144633468925800. Its totient is φ = 31576028295168.

The previous prime is 78283314512167. The next prime is 78283314512239. The reversal of 78283314512186 is 68121541338287.

78283314512186 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 78227285255161 + 56029257025 = 8844619^2 + 236705^2 .

It is a super-2 number, since 2×78283314512186² (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 23 ways as a sum of consecutive naturals, for example, 138644330 + ... + 139207818.

Almost surely, 2^{78283314512186} is an apocalyptic number.

78283314512186 is a deficient number, since it is larger than the sum of its proper divisors (66350154413614).

78283314512186 is a wasteful number, since it uses less digits than its factorization.

78283314512186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646911 (or 646904 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 59.

The spelling of 78283314512186 in words is "seventy-eight trillion, two hundred eighty-three billion, three hundred fourteen million, five hundred twelve thousand, one hundred eighty-six".