20693454495783 has 8 divisors (see below), whose sum is σ = 27595537839600. Its totient is φ = 13793503741248.

The previous prime is 20693454495751. The next prime is 20693454495793. The reversal of 20693454495783 is 38759445439602.

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

It is not a de Polignac number, because 20693454495783 - 2⁵ = 20693454495751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20693454495733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533124678 + ... + 533163491.

It is an arithmetic number, because the mean of its divisors is an integer number (3449442229950).

Almost surely, 2^{20693454495783} is an apocalyptic number.

20693454495783 is a deficient number, since it is larger than the sum of its proper divisors (6902083343817).

20693454495783 is a wasteful number, since it uses less digits than its factorization.

20693454495783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066294641.

The product of its (nonzero) digits is 783820800, while the sum is 69.

The spelling of 20693454495783 in words is "twenty trillion, six hundred ninety-three billion, four hundred fifty-four million, four hundred ninety-five thousand, seven hundred eighty-three".