20353702019 has 8 divisors (see below), whose sum is σ = 23265898080. Its totient is φ = 17442637056.

The previous prime is 20353701967. The next prime is 20353702021. The reversal of 20353702019 is 91020735302.

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-20353702019 is a prime.

It is a super-2 number, since 2×20353702019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20353702219) 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 7 ways as a sum of consecutive naturals, for example, 243854 + ... + 316499.

It is an arithmetic number, because the mean of its divisors is an integer number (2908237260).

Almost surely, 2^20353702019 is an apocalyptic number.

20353702019 is a deficient number, since it is larger than the sum of its proper divisors (2912196061).

20353702019 is an equidigital number, since it uses as much as digits as its factorization.

20353702019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565549.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 20353702019 in words is "twenty billion, three hundred fifty-three million, seven hundred two thousand, nineteen".