20758027717 has 16 divisors (see below), whose sum is σ = 23787781632. Its totient is φ = 17744417280.

The previous prime is 20758027603. The next prime is 20758027721. The reversal of 20758027717 is 71772085702.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20758027717 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 (20758027517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7811253 + ... + 7813909.

It is an arithmetic number, because the mean of its divisors is an integer number (1486736352).

Almost surely, 2^20758027717 is an apocalyptic number.

It is an amenable number.

20758027717 is a deficient number, since it is larger than the sum of its proper divisors (3029753915).

20758027717 is a wasteful number, since it uses less digits than its factorization.

20758027717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268.

The product of its (nonzero) digits is 384160, while the sum is 46.

The spelling of 20758027717 in words is "twenty billion, seven hundred fifty-eight million, twenty-seven thousand, seven hundred seventeen".