51438606044353 has 16 divisors (see below), whose sum is σ = 56242548457920. Its totient is φ = 46656055353600.

The previous prime is 51438606044339. The next prime is 51438606044381. The reversal of 51438606044353 is 35344060683415.

It is a happy number.

It is not a de Polignac number, because 51438606044353 - 2³³ = 51430016109761 is a prime.

It is a super-2 number, since 2×51438606044353² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51438606044353.

It is not an unprimeable number, because it can be changed into a prime (51438606044953) 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, 6890101 + ... + 12261757.

It is an arithmetic number, because the mean of its divisors is an integer number (3515159278620).

Almost surely, 2^{51438606044353} is an apocalyptic number.

It is an amenable number.

51438606044353 is a deficient number, since it is larger than the sum of its proper divisors (4803942413567).

51438606044353 is a wasteful number, since it uses less digits than its factorization.

51438606044353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373648.

The product of its (nonzero) digits is 12441600, while the sum is 52.

The spelling of 51438606044353 in words is "fifty-one trillion, four hundred thirty-eight billion, six hundred six million, forty-four thousand, three hundred fifty-three".