20430343767 has 16 divisors (see below), whose sum is σ = 27749018880. Its totient is φ = 13366730112.

The previous prime is 20430343733. The next prime is 20430343771. The reversal of 20430343767 is 76734303402.

It is not a de Polignac number, because 20430343767 - 2³⁴ = 3250474583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430343727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7638 + ... + 202284.

It is an arithmetic number, because the mean of its divisors is an integer number (1734313680).

Almost surely, 2^20430343767 is an apocalyptic number.

20430343767 is a deficient number, since it is larger than the sum of its proper divisors (7318675113).

20430343767 is a wasteful number, since it uses less digits than its factorization.

20430343767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195302.

The product of its (nonzero) digits is 254016, while the sum is 39.

The spelling of 20430343767 in words is "twenty billion, four hundred thirty million, three hundred forty-three thousand, seven hundred sixty-seven".