51181408441 has 8 divisors (see below), whose sum is σ = 54788306400. Its totient is φ = 47665824480.

The previous prime is 51181408429. The next prime is 51181408483. The reversal of 51181408441 is 14480418115.

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 51181408441 - 2¹⁵ = 51181375673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51181408441.

It is not an unprimeable number, because it can be changed into a prime (51181408141) 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 7 ways as a sum of consecutive naturals, for example, 22827340 + ... + 22829581.

It is an arithmetic number, because the mean of its divisors is an integer number (6848538300).

Almost surely, 2^51181408441 is an apocalyptic number.

It is an amenable number.

51181408441 is a deficient number, since it is larger than the sum of its proper divisors (3606897959).

51181408441 is a wasteful number, since it uses less digits than its factorization.

51181408441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45656999.

The product of its (nonzero) digits is 20480, while the sum is 37.

The spelling of 51181408441 in words is "fifty-one billion, one hundred eighty-one million, four hundred eight thousand, four hundred forty-one".