51957446376 has 128 divisors (see below), whose sum is σ = 144370045440. Its totient is φ = 15449491200.

The previous prime is 51957446371. The next prime is 51957446389. The reversal of 51957446376 is 67364475915.

It is not an unprimeable number, because it can be changed into a prime (51957446371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7130431 + ... + 7137713.

It is an arithmetic number, because the mean of its divisors is an integer number (1127890980).

Almost surely, 2^51957446376 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 51957446376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72185022720).

51957446376 is an abundant number, since it is smaller than the sum of its proper divisors (92412599064).

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

51957446376 is a wasteful number, since it uses less digits than its factorization.

51957446376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807 (or 7803 counting only the distinct ones).

The product of its digits is 19051200, while the sum is 57.

The spelling of 51957446376 in words is "fifty-one billion, nine hundred fifty-seven million, four hundred forty-six thousand, three hundred seventy-six".