51696312360 has 256 divisors, whose sum is σ = 197007759360. Its totient is φ = 10539310080.

The previous prime is 51696312359. The next prime is 51696312383. The reversal of 51696312360 is 6321369615.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 436939 + ... + 542501.

It is an arithmetic number, because the mean of its divisors is an integer number (769561560).

Almost surely, 2^51696312360 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 51696312360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98503879680).

51696312360 is an abundant number, since it is smaller than the sum of its proper divisors (145311447000).

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

51696312360 is a wasteful number, since it uses less digits than its factorization.

51696312360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105648 (or 105644 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 51696312360 in words is "fifty-one billion, six hundred ninety-six million, three hundred twelve thousand, three hundred sixty".