2163442002451 has 4 divisors (see below), whose sum is σ = 2163452483752. Its totient is φ = 2163431521152.

The previous prime is 2163442002383. The next prime is 2163442002541. The reversal of 2163442002451 is 1542002443612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2163442002451 - 2¹¹ = 2163442000403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163442002751) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4924686 + ... + 5345971.

It is an arithmetic number, because the mean of its divisors is an integer number (540863120938).

Almost surely, 2^{2163442002451} is an apocalyptic number.

2163442002451 is a deficient number, since it is larger than the sum of its proper divisors (10481301).

2163442002451 is a wasteful number, since it uses less digits than its factorization.

2163442002451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481300.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 2163442002451 in words is "two trillion, one hundred sixty-three billion, four hundred forty-two million, two thousand, four hundred fifty-one".