20146679743 has 2 divisors, whose sum is σ = 20146679744. Its totient is φ = 20146679742.

The previous prime is 20146679741. The next prime is 20146679747. The reversal of 20146679743 is 34797664102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20146679743 - 2¹ = 20146679741 is a prime.

Together with 20146679741, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20146679741) 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 as a sum of consecutive naturals, namely, 10073339871 + 10073339872.

It is an arithmetic number, because the mean of its divisors is an integer number (10073339872).

Almost surely, 2^20146679743 is an apocalyptic number.

20146679743 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146679743 is an equidigital number, since it uses as much as digits as its factorization.

20146679743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 20146679743 in words is "twenty billion, one hundred forty-six million, six hundred seventy-nine thousand, seven hundred forty-three".