20430343715 has 8 divisors (see below), whose sum is σ = 24527044080. Its totient is φ = 16337187232.

The previous prime is 20430343711. The next prime is 20430343721. The reversal of 20430343715 is 51734303402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20430343715 - 2² = 20430343711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20430343711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873269 + ... + 896358.

It is an arithmetic number, because the mean of its divisors is an integer number (3065880510).

Almost surely, 2^20430343715 is an apocalyptic number.

20430343715 is a deficient number, since it is larger than the sum of its proper divisors (4096700365).

20430343715 is a wasteful number, since it uses less digits than its factorization.

20430343715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771941.

The product of its (nonzero) digits is 30240, while the sum is 32.

The spelling of 20430343715 in words is "twenty billion, four hundred thirty million, three hundred forty-three thousand, seven hundred fifteen".