20709469463 has 16 divisors (see below), whose sum is σ = 22236297600. Its totient is φ = 19228350240.

The previous prime is 20709469447. The next prime is 20709469483. The reversal of 20709469463 is 36496490702.

It is a cyclic number.

It is not a de Polignac number, because 20709469463 - 2⁴ = 20709469447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20709469483) 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 15 ways as a sum of consecutive naturals, for example, 343145 + ... + 398957.

It is an arithmetic number, because the mean of its divisors is an integer number (1389768600).

Almost surely, 2^20709469463 is an apocalyptic number.

20709469463 is a deficient number, since it is larger than the sum of its proper divisors (1526828137).

20709469463 is a wasteful number, since it uses less digits than its factorization.

20709469463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56222.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 20709469463 in words is "twenty billion, seven hundred nine million, four hundred sixty-nine thousand, four hundred sixty-three".