51791613184 has 72 divisors (see below), whose sum is σ = 108543022560. Its totient is φ = 24629434368.

The previous prime is 51791613113. The next prime is 51791613193. The reversal of 51791613184 is 48131619715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445347 + ... + 549469.

It is an arithmetic number, because the mean of its divisors is an integer number (1507541980).

Almost surely, 2^51791613184 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 51791613184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54271511280).

51791613184 is an abundant number, since it is smaller than the sum of its proper divisors (56751409376).

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

51791613184 is a wasteful number, since it uses less digits than its factorization.

51791613184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104235 (or 104221 counting only the distinct ones).

The product of its digits is 181440, while the sum is 46.

The spelling of 51791613184 in words is "fifty-one billion, seven hundred ninety-one million, six hundred thirteen thousand, one hundred eighty-four".