51324081104 has 20 divisors (see below), whose sum is σ = 100320414276. Its totient is φ = 25434941952.

The previous prime is 51324081103. The next prime is 51324081131. The reversal of 51324081104 is 40118042315.

It can be written as a sum of positive squares in 2 ways, for example, as 10931120704 + 40392960400 = 104552^2 + 200980^2 .

It is a super-2 number, since 2×51324081104² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51324081103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14191799 + ... + 14195414.

Almost surely, 2^51324081104 is an apocalyptic number.

It is an amenable number.

51324081104 is a deficient number, since it is larger than the sum of its proper divisors (48996333172).

51324081104 is a wasteful number, since it uses less digits than its factorization.

51324081104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28387334 (or 28387328 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 51324081104 in words is "fifty-one billion, three hundred twenty-four million, eighty-one thousand, one hundred four".