20044463051381 has 4 divisors (see below), whose sum is σ = 20044617195552. Its totient is φ = 20044308907212.

The previous prime is 20044463051369. The next prime is 20044463051383. The reversal of 20044463051381 is 18315036444002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20044463051381 - 2³⁸ = 19769585144437 is a prime.

It is a super-2 number, since 2×20044463051381² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20044463051383) 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, 76876865 + ... + 77137158.

It is an arithmetic number, because the mean of its divisors is an integer number (5011154298888).

Almost surely, 2^{20044463051381} is an apocalyptic number.

It is an amenable number.

20044463051381 is a deficient number, since it is larger than the sum of its proper divisors (154144171).

20044463051381 is a wasteful number, since it uses less digits than its factorization.

20044463051381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154144170.

The product of its (nonzero) digits is 276480, while the sum is 41.

Adding to 20044463051381 its reverse (18315036444002), we get a palindrome (38359499495383).

The spelling of 20044463051381 in words is "twenty trillion, forty-four billion, four hundred sixty-three million, fifty-one thousand, three hundred eighty-one".