2178093916736 has 28 divisors (see below), whose sum is σ = 4471194951420. Its totient is φ = 1051493614080.

The previous prime is 2178093916729. The next prime is 2178093916763. The reversal of 2178093916736 is 6376193908712.

It can be written as a sum of positive squares in 2 ways, for example, as 1556645494336 + 621448422400 = 1247656^2 + 788320^2 .

It is a super-2 number, since 2×2178093916736² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586769135 + ... + 586772846.

Almost surely, 2^{2178093916736} is an apocalyptic number.

It is an amenable number.

2178093916736 is an abundant number, since it is smaller than the sum of its proper divisors (2293101034684).

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

2178093916736 is a wasteful number, since it uses less digits than its factorization.

2178093916736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173542022 (or 1173542012 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 62.

The spelling of 2178093916736 in words is "two trillion, one hundred seventy-eight billion, ninety-three million, nine hundred sixteen thousand, seven hundred thirty-six".