78843132672 has 36 divisors (see below), whose sum is σ = 209837714520. Its totient is φ = 26281043968.

The previous prime is 78843132653. The next prime is 78843132673. The reversal of 78843132672 is 27623134887.

It is not an unprimeable number, because it can be changed into a prime (78843132673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51329397 + ... + 51330932.

Almost surely, 2^78843132672 is an apocalyptic number.

It is an amenable number.

78843132672 is an abundant number, since it is smaller than the sum of its proper divisors (130994581848).

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

78843132672 is a wasteful number, since it uses less digits than its factorization.

78843132672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102660348 (or 102660334 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 78843132672 in words is "seventy-eight billion, eight hundred forty-three million, one hundred thirty-two thousand, six hundred seventy-two".