20861096483 has 4 divisors (see below), whose sum is σ = 21172456200. Its totient is φ = 20549736768.

The previous prime is 20861096479. The next prime is 20861096549. The reversal of 20861096483 is 38469016802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38469016802 = 2 ⋅19234508401.

It is a cyclic number.

It is not a de Polignac number, because 20861096483 - 2² = 20861096479 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20861096783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155679758 + ... + 155679891.

It is an arithmetic number, because the mean of its divisors is an integer number (5293114050).

Almost surely, 2^20861096483 is an apocalyptic number.

20861096483 is a deficient number, since it is larger than the sum of its proper divisors (311359717).

20861096483 is an equidigital number, since it uses as much as digits as its factorization.

20861096483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311359716.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 20861096483 in words is "twenty billion, eight hundred sixty-one million, ninety-six thousand, four hundred eighty-three".