20073753845 has 16 divisors (see below), whose sum is σ = 24168127680. Its totient is φ = 16006012800.

The previous prime is 20073753841. The next prime is 20073753851. The reversal of 20073753845 is 54835737002.

It is not a de Polignac number, because 20073753845 - 2² = 20073753841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20073753796 and 20073753805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20073753841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1960790 + ... + 1971000.

It is an arithmetic number, because the mean of its divisors is an integer number (1510507980).

Almost surely, 2^20073753845 is an apocalyptic number.

It is an amenable number.

20073753845 is a deficient number, since it is larger than the sum of its proper divisors (4094373835).

20073753845 is a wasteful number, since it uses less digits than its factorization.

20073753845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11476.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 20073753845 in words is "twenty billion, seventy-three million, seven hundred fifty-three thousand, eight hundred forty-five".