78159043200 has 192 divisors, whose sum is σ = 294213222720. Its totient is φ = 17864908800.

The previous prime is 78159043159. The next prime is 78159043217. The reversal of 78159043200 is 234095187.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×78159043200² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 514341 + ... + 648740.

It is an arithmetic number, because the mean of its divisors is an integer number (1532360535).

Almost surely, 2^78159043200 is an apocalyptic number.

78159043200 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78159043200 is an abundant number, since it is smaller than the sum of its proper divisors (216054179520).

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

78159043200 is a wasteful number, since it uses less digits than its factorization.

78159043200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163115 (or 1163098 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 78159043200 in words is "seventy-eight billion, one hundred fifty-nine million, forty-three thousand, two hundred".