2163491792280 has 384 divisors, whose sum is σ = 9034364203200. Its totient is φ = 456472848384.

The previous prime is 2163491792227. The next prime is 2163491792299. The reversal of 2163491792280 is 822971943612.

2163491792280 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 491 + 79 + 2 + 2 + 80 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 884437 + ... + 2260356.

Almost surely, 2^{2163491792280} is an apocalyptic number.

2163491792280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2163491792280 is an abundant number, since it is smaller than the sum of its proper divisors (6870872410920).

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

2163491792280 is a wasteful number, since it uses less digits than its factorization.

2163491792280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144840 (or 3144823 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 2163491792280 in words is "two trillion, one hundred sixty-three billion, four hundred ninety-one million, seven hundred ninety-two thousand, two hundred eighty".