51108910380 has 576 divisors, whose sum is σ = 180654364800. Its totient is φ = 11581194240.

The previous prime is 51108910343. The next prime is 51108910387. The reversal of 51108910380 is 8301980115.

It is a super-2 number, since 2×51108910380² (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 not an unprimeable number, because it can be changed into a prime (51108910387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 373057672 + ... + 373057808.

It is an arithmetic number, because the mean of its divisors is an integer number (313636050).

Almost surely, 2^51108910380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51108910380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90327182400).

51108910380 is an abundant number, since it is smaller than the sum of its proper divisors (129545454420).

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

51108910380 is a wasteful number, since it uses less digits than its factorization.

51108910380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The spelling of 51108910380 in words is "fifty-one billion, one hundred eight million, nine hundred ten thousand, three hundred eighty".