20430415743 has 16 divisors (see below), whose sum is σ = 27917078112. Its totient is φ = 13282304000.

The previous prime is 20430415727. The next prime is 20430415799. The reversal of 20430415743 is 34751403402.

It is a cyclic number.

It is not a de Polignac number, because 20430415743 - 2⁴ = 20430415727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430415043) 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 15 ways as a sum of consecutive naturals, for example, 257983 + ... + 327743.

It is an arithmetic number, because the mean of its divisors is an integer number (1744817382).

Almost surely, 2^20430415743 is an apocalyptic number.

20430415743 is a deficient number, since it is larger than the sum of its proper divisors (7486662369).

20430415743 is a wasteful number, since it uses less digits than its factorization.

20430415743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72186.

The product of its (nonzero) digits is 40320, while the sum is 33.

The spelling of 20430415743 in words is "twenty billion, four hundred thirty million, four hundred fifteen thousand, seven hundred forty-three".