78323823636000 has 768 divisors, whose sum is σ = 266353908387840. Its totient is φ = 20099420160000.

The previous prime is 78323823635951. The next prime is 78323823636017. The reversal of 78323823636000 is 63632832387.

It is a happy number.

It is a super-2 number, since 2×78323823636000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 95400515590 + ... + 95400516410.

It is an arithmetic number, because the mean of its divisors is an integer number (346814984880).

Almost surely, 2^{78323823636000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78323823636000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133176954193920).

78323823636000 is an abundant number, since it is smaller than the sum of its proper divisors (188030084751840).

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

78323823636000 is a wasteful number, since it uses less digits than its factorization.

78323823636000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006 (or 1988 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 51.

The spelling of 78323823636000 in words is "seventy-eight trillion, three hundred twenty-three billion, eight hundred twenty-three million, six hundred thirty-six thousand".