20702274683 has 4 divisors (see below), whose sum is σ = 20710063080. Its totient is φ = 20694486288.

The previous prime is 20702274673. The next prime is 20702274713. The reversal of 20702274683 is 38647220702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38647220702 = 2 ⋅19323610351.

It is a cyclic number.

It is not a de Polignac number, because 20702274683 - 2⁸ = 20702274427 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 20702274683.

It is not an unprimeable number, because it can be changed into a prime (20702274673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3890210 + ... + 3895527.

It is an arithmetic number, because the mean of its divisors is an integer number (5177515770).

Almost surely, 2^20702274683 is an apocalyptic number.

20702274683 is a deficient number, since it is larger than the sum of its proper divisors (7788397).

20702274683 is an equidigital number, since it uses as much as digits as its factorization.

20702274683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788396.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 20702274683 in words is "twenty billion, seven hundred two million, two hundred seventy-four thousand, six hundred eighty-three".