51108869376 has 180 divisors, whose sum is σ = 152858103552. Its totient is φ = 16984802304.

The previous prime is 51108869369. The next prime is 51108869429. The reversal of 51108869376 is 67396880115.

It is a super-2 number, since 2×51108869376² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 7191841 + ... + 7198943.

Almost surely, 2^51108869376 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 51108869376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76429051776).

51108869376 is an abundant number, since it is smaller than the sum of its proper divisors (101749234176).

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

51108869376 is an equidigital number, since it uses as much as digits as its factorization.

51108869376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7478 (or 7455 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 51108869376 in words is "fifty-one billion, one hundred eight million, eight hundred sixty-nine thousand, three hundred seventy-six".