78588844647330 has 128 divisors (see below), whose sum is σ = 192610872115200. Its totient is φ = 20516132770560.

The previous prime is 78588844647323. The next prime is 78588844647413. The reversal of 78588844647330 is 3374644888587.

It is a super-2 number, since 2×78588844647330² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1902903021 + ... + 1902944319.

It is an arithmetic number, because the mean of its divisors is an integer number (1504772438400).

Almost surely, 2^{78588844647330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78588844647330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96305436057600).

78588844647330 is an abundant number, since it is smaller than the sum of its proper divisors (114022027467870).

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

78588844647330 is a wasteful number, since it uses less digits than its factorization.

78588844647330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46256.

The product of its (nonzero) digits is 3468165120, while the sum is 75.

The spelling of 78588844647330 in words is "seventy-eight trillion, five hundred eighty-eight billion, eight hundred forty-four million, six hundred forty-seven thousand, three hundred thirty".