873132231378 has 128 divisors (see below), whose sum is σ = 1946111940864. Its totient is φ = 258951168000.

The previous prime is 873132231359. The next prime is 873132231379.

873132231378 is nontrivially palindromic in base 10.

873132231378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×873132231378² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (873132231379) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 326159376 + ... + 326162052.

It is an arithmetic number, because the mean of its divisors is an integer number (15203999538).

Almost surely, 2^873132231378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 873132231378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973055970432).

873132231378 is an abundant number, since it is smaller than the sum of its proper divisors (1072979709486).

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

873132231378 is a wasteful number, since it uses less digits than its factorization.

873132231378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3340.

The product of its digits is 1016064, while the sum is 48.

The spelling of 873132231378 in words is "eight hundred seventy-three billion, one hundred thirty-two million, two hundred thirty-one thousand, three hundred seventy-eight".