2179442753893 has 2 divisors, whose sum is σ = 2179442753894. Its totient is φ = 2179442753892.

The previous prime is 2179442753879. The next prime is 2179442753923. The reversal of 2179442753893 is 3983572449712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2149809885729 + 29632868164 = 1466223^2 + 172142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2179442753893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2179442753863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1089721376946 + 1089721376947.

It is an arithmetic number, because the mean of its divisors is an integer number (1089721376947).

Almost surely, 2^{2179442753893} is an apocalyptic number.

It is an amenable number.

2179442753893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2179442753893 is an equidigital number, since it uses as much as digits as its factorization.

2179442753893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91445760, while the sum is 64.

The spelling of 2179442753893 in words is "two trillion, one hundred seventy-nine billion, four hundred forty-two million, seven hundred fifty-three thousand, eight hundred ninety-three".