51042465444 has 48 divisors (see below), whose sum is σ = 126027740160. Its totient is φ = 16045186080.

The previous prime is 51042465443. The next prime is 51042465457. The reversal of 51042465444 is 44456424015.

It is not an unprimeable number, because it can be changed into a prime (51042465443) 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 15 ways as a sum of consecutive naturals, for example, 1282774 + ... + 1321965.

It is an arithmetic number, because the mean of its divisors is an integer number (2625577920).

Almost surely, 2^51042465444 is an apocalyptic number.

It is an amenable number.

51042465444 is an abundant number, since it is smaller than the sum of its proper divisors (74985274716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51042465444 is a wasteful number, since it uses less digits than its factorization.

51042465444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604840 (or 2604838 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 39.

Adding to 51042465444 its reverse (44456424015), we get a palindrome (95498889459).

The spelling of 51042465444 in words is "fifty-one billion, forty-two million, four hundred sixty-five thousand, four hundred forty-four".