78841172832 has 48 divisors (see below), whose sum is σ = 206997073920. Its totient is φ = 26275439232.

The previous prime is 78841172807. The next prime is 78841172869. The reversal of 78841172832 is 23827114887.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 453669 + ... + 602907.

It is an arithmetic number, because the mean of its divisors is an integer number (4312439040).

Almost surely, 2^78841172832 is an apocalyptic number.

It is an amenable number.

78841172832 is an abundant number, since it is smaller than the sum of its proper divisors (128155901088).

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

78841172832 is a wasteful number, since it uses less digits than its factorization.

78841172832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154755 (or 154747 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 51.

The spelling of 78841172832 in words is "seventy-eight billion, eight hundred forty-one million, one hundred seventy-two thousand, eight hundred thirty-two".