78103143636112 has 160 divisors (see below), whose sum is σ = 189162592819200. Its totient is φ = 30510092067840.

The previous prime is 78103143636103. The next prime is 78103143636139. The reversal of 78103143636112 is 21163634130187.

It is a happy number.

It is a super-2 number, since 2×78103143636112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4057362 + ... + 13140337.

It is an arithmetic number, because the mean of its divisors is an integer number (1182266205120).

Almost surely, 2^{78103143636112} is an apocalyptic number.

It is an amenable number.

78103143636112 is an abundant number, since it is smaller than the sum of its proper divisors (111059449183088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78103143636112 is a wasteful number, since it uses less digits than its factorization.

78103143636112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17197821 (or 17197815 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

Adding to 78103143636112 its reverse (21163634130187), we get a palindrome (99266777766299).

The spelling of 78103143636112 in words is "seventy-eight trillion, one hundred three billion, one hundred forty-three million, six hundred thirty-six thousand, one hundred twelve".