78089137182 has 224 divisors, whose sum is σ = 209155080960. Its totient is φ = 21391309440.

The previous prime is 78089137163. The next prime is 78089137183. The reversal of 78089137182 is 28173198087.

It is a happy number.

It is a super-2 number, since 2×78089137182² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78089137183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 24686733 + ... + 24689895.

It is an arithmetic number, because the mean of its divisors is an integer number (933728040).

Almost surely, 2^78089137182 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78089137182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104577540480).

78089137182 is an abundant number, since it is smaller than the sum of its proper divisors (131065943778).

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

78089137182 is a wasteful number, since it uses less digits than its factorization.

78089137182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290 (or 3275 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 78089137182 in words is "seventy-eight billion, eighty-nine million, one hundred thirty-seven thousand, one hundred eighty-two".