78108012 has 36 divisors (see below), whose sum is σ = 207833080. Its totient is φ = 24665472.

The previous prime is 78108001. The next prime is 78108059. The reversal of 78108012 is 21080187.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×78108012² = 12201723077184288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56413 + ... + 57780.

Almost surely, 2^78108012 is an apocalyptic number.

It is an amenable number.

78108012 is an abundant number, since it is smaller than the sum of its proper divisors (129725068).

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

78108012 is a wasteful number, since it uses less digits than its factorization.

78108012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114222 (or 114217 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 78108012 is about 8837.8737261855. The cubic root of 78108012 is about 427.4629987469.

Adding to 78108012 its reverse (21080187), we get a palindrome (99188199).

The spelling of 78108012 in words is "seventy-eight million, one hundred eight thousand, twelve".