78540064112 has 20 divisors (see below), whose sum is σ = 152892572136. Its totient is φ = 39083916480.

The previous prime is 78540064087. The next prime is 78540064129. The reversal of 78540064112 is 21146004587.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11628743 + ... + 11635494.

Almost surely, 2^78540064112 is an apocalyptic number.

It is an amenable number.

78540064112 is a deficient number, since it is larger than the sum of its proper divisors (74352508024).

78540064112 is a wasteful number, since it uses less digits than its factorization.

78540064112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23264456 (or 23264450 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

Adding to 78540064112 its reverse (21146004587), we get a palindrome (99686068699).

The spelling of 78540064112 in words is "seventy-eight billion, five hundred forty million, sixty-four thousand, one hundred twelve".