20073561349 has 8 divisors (see below), whose sum is σ = 20100225728. Its totient is φ = 20046916800.

The previous prime is 20073561323. The next prime is 20073561367. The reversal of 20073561349 is 94316537002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20073561349 - 2²⁷ = 19939343621 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 (20073561749) 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, 3305614 + ... + 3311680.

It is an arithmetic number, because the mean of its divisors is an integer number (2512528216).

Almost surely, 2^20073561349 is an apocalyptic number.

It is an amenable number.

20073561349 is a deficient number, since it is larger than the sum of its proper divisors (26664379).

20073561349 is a wasteful number, since it uses less digits than its factorization.

20073561349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9915.

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 20073561349 in words is "twenty billion, seventy-three million, five hundred sixty-one thousand, three hundred forty-nine".