873353646353378 has 16 divisors (see below), whose sum is σ = 1312899891206904. Its totient is φ = 435720389266560.

The previous prime is 873353646353339. The next prime is 873353646353413.

873353646353378 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 872683856335729 + 669790017649 = 29541223^2 + 818407^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33820676 + ... + 53763792.

Almost surely, 2^{873353646353378} is an apocalyptic number.

873353646353378 is a deficient number, since it is larger than the sum of its proper divisors (439546244853526).

873353646353378 is a wasteful number, since it uses less digits than its factorization.

873353646353378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19991077.

The product of its digits is 8230118400, while the sum is 74.

The spelling of 873353646353378 in words is "eight hundred seventy-three trillion, three hundred fifty-three billion, six hundred forty-six million, three hundred fifty-three thousand, three hundred seventy-eight".