51107481936 has 240 divisors, whose sum is σ = 173792376576. Its totient is φ = 13703399424.

The previous prime is 51107481917. The next prime is 51107481937. The reversal of 51107481936 is 63918470115.

51107481936 is a `hidden beast` number, since 511 + 0 + 7 + 48 + 1 + 93 + 6 = 666.

51107481936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51107481936² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51107481891 and 51107481900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51107481937) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1207956 + ... + 1249548.

Almost surely, 2^51107481936 is an apocalyptic number.

51107481936 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51107481936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86896188288).

51107481936 is an abundant number, since it is smaller than the sum of its proper divisors (122684894640).

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

51107481936 is a wasteful number, since it uses less digits than its factorization.

51107481936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41690 (or 41681 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 51107481936 in words is "fifty-one billion, one hundred seven million, four hundred eighty-one thousand, nine hundred thirty-six".