20807714671 has 8 divisors (see below), whose sum is σ = 21122447360. Its totient is φ = 20495339928.

The previous prime is 20807714659. The next prime is 20807714713. The reversal of 20807714671 is 17641770802.

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 20807714671 - 2⁵ = 20807714639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20807714171) 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 7 ways as a sum of consecutive naturals, for example, 571701 + ... + 607006.

It is an arithmetic number, because the mean of its divisors is an integer number (2640305920).

Almost surely, 2^20807714671 is an apocalyptic number.

20807714671 is a deficient number, since it is larger than the sum of its proper divisors (314732689).

20807714671 is a wasteful number, since it uses less digits than its factorization.

20807714671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178973.

The product of its (nonzero) digits is 131712, while the sum is 43.

The spelling of 20807714671 in words is "twenty billion, eight hundred seven million, seven hundred fourteen thousand, six hundred seventy-one".