2189677351723 has 2 divisors, whose sum is σ = 2189677351724. Its totient is φ = 2189677351722.

The previous prime is 2189677351577. The next prime is 2189677351793. The reversal of 2189677351723 is 3271537769812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2189677351723 - 2¹³ = 2189677343531 is a prime.

It is not a weakly prime, because it can be changed into another prime (2189677351793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094838675861 + 1094838675862.

It is an arithmetic number, because the mean of its divisors is an integer number (1094838675862).

Almost surely, 2^{2189677351723} is an apocalyptic number.

2189677351723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189677351723 is an equidigital number, since it uses as much as digits as its factorization.

2189677351723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26671680, while the sum is 61.

The spelling of 2189677351723 in words is "two trillion, one hundred eighty-nine billion, six hundred seventy-seven million, three hundred fifty-one thousand, seven hundred twenty-three".