873660066378 has 64 divisors (see below), whose sum is σ = 1934331494400. Its totient is φ = 260847812160.

The previous prime is 873660066337. The next prime is 873660066407.

873660066378 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×873660066378² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2322600 + ... + 2672412.

It is an arithmetic number, because the mean of its divisors is an integer number (30223929600).

Almost surely, 2^873660066378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 873660066378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (967165747200).

873660066378 is an abundant number, since it is smaller than the sum of its proper divisors (1060671428022).

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

873660066378 is a wasteful number, since it uses less digits than its factorization.

873660066378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350387.

The product of its (nonzero) digits is 36578304, while the sum is 60.

The spelling of 873660066378 in words is "eight hundred seventy-three billion, six hundred sixty million, sixty-six thousand, three hundred seventy-eight".