78441316900 has 18 divisors (see below), whose sum is σ = 170217657890. Its totient is φ = 31376526720.

The previous prime is 78441316873. The next prime is 78441316901. The reversal of 78441316900 is 961314487.

It can be written as a sum of positive squares in 3 ways, for example, as 503194624 + 77938122276 = 22432^2 + 279174^2 .

It is a super-2 number, since 2×78441316900² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78441316901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 392206485 + ... + 392206684.

Almost surely, 2^78441316900 is an apocalyptic number.

It is an amenable number.

78441316900 is an abundant number, since it is smaller than the sum of its proper divisors (91776340990).

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

78441316900 is a wasteful number, since it uses less digits than its factorization.

78441316900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784413183 (or 784413176 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 78441316900 in words is "seventy-eight billion, four hundred forty-one million, three hundred sixteen thousand, nine hundred".