2163738545280 has 256 divisors, whose sum is σ = 8252721590400. Its totient is φ = 532612509696.

The previous prime is 2163738545261. The next prime is 2163738545299. The reversal of 2163738545280 is 825458373612.

2163738545280 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 73 + 8 + 545 + 28 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2163738545261) and next prime (2163738545299).

It is a super-2 number, since 2×2163738545280² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4591374 + ... + 5040653.

Almost surely, 2^{2163738545280} is an apocalyptic number.

2163738545280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163738545280 is an abundant number, since it is smaller than the sum of its proper divisors (6088983045120).

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

2163738545280 is a wasteful number, since it uses less digits than its factorization.

2163738545280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9632068 (or 9632050 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 2163738545280 in words is "two trillion, one hundred sixty-three billion, seven hundred thirty-eight million, five hundred forty-five thousand, two hundred eighty".