20465683783 has 8 divisors (see below), whose sum is σ = 20507817600. Its totient is φ = 20423577720.

The previous prime is 20465683753. The next prime is 20465683817. The reversal of 20465683783 is 38738656402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20465683783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20465683783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20465683703) 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, 2086216 + ... + 2096002.

It is an arithmetic number, because the mean of its divisors is an integer number (2563477200).

Almost surely, 2^20465683783 is an apocalyptic number.

20465683783 is a deficient number, since it is larger than the sum of its proper divisors (42133817).

20465683783 is an equidigital number, since it uses as much as digits as its factorization.

20465683783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13877.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 20465683783 in words is "twenty billion, four hundred sixty-five million, six hundred eighty-three thousand, seven hundred eighty-three".