51108910344 has 24 divisors (see below), whose sum is σ = 138419965710. Its totient is φ = 17036303424.

The previous prime is 51108910343. The next prime is 51108910387. The reversal of 51108910344 is 44301980115.

It can be written as a sum of positive squares in only one way, i.e., 32432408100 + 18676502244 = 180090^2 + 136662^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×51108910344² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 51108910299 and 51108910308.

It is not an unprimeable number, because it can be changed into a prime (51108910343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 354922917 + ... + 354923060.

Almost surely, 2^51108910344 is an apocalyptic number.

It is an amenable number.

51108910344 is an abundant number, since it is smaller than the sum of its proper divisors (87311055366).

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

51108910344 is a wasteful number, since it uses less digits than its factorization.

51108910344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709845989 (or 709845982 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 51108910344 in words is "fifty-one billion, one hundred eight million, nine hundred ten thousand, three hundred forty-four".