51443423541 has 32 divisors (see below), whose sum is σ = 78010352640. Its totient is φ = 33487095600.

The previous prime is 51443423539. The next prime is 51443423543. The reversal of 51443423541 is 14532434415.

51443423541 is a `hidden beast` number, since 51 + 4 + 43 + 4 + 23 + 541 = 666.

It is an interprime number because it is at equal distance from previous prime (51443423539) and next prime (51443423543).

It is not a de Polignac number, because 51443423541 - 2¹ = 51443423539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51443423496 and 51443423505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51443423543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5092906 + ... + 5102996.

It is an arithmetic number, because the mean of its divisors is an integer number (2437823520).

Almost surely, 2^51443423541 is an apocalyptic number.

It is an amenable number.

51443423541 is a deficient number, since it is larger than the sum of its proper divisors (26566929099).

51443423541 is a wasteful number, since it uses less digits than its factorization.

51443423541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14534 (or 14528 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 51443423541 its reverse (14532434415), we get a palindrome (65975857956).

The spelling of 51443423541 in words is "fifty-one billion, four hundred forty-three million, four hundred twenty-three thousand, five hundred forty-one".