20965484743 has 8 divisors (see below), whose sum is σ = 23976744480. Its totient is φ = 17958272640.

The previous prime is 20965484717. The next prime is 20965484783. The reversal of 20965484743 is 34748456902.

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

It is not a de Polignac number, because 20965484743 - 2⁵ = 20965484711 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 (20965484713) 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, 1000798 + ... + 1021531.

It is an arithmetic number, because the mean of its divisors is an integer number (2997093060).

Almost surely, 2^20965484743 is an apocalyptic number.

20965484743 is a deficient number, since it is larger than the sum of its proper divisors (3011259737).

20965484743 is a wasteful number, since it uses less digits than its factorization.

20965484743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023817.

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

The spelling of 20965484743 in words is "twenty billion, nine hundred sixty-five million, four hundred eighty-four thousand, seven hundred forty-three".