51059720695360 has 672 divisors, whose sum is σ = 145580639081472. Its totient is φ = 16921043927040.

The previous prime is 51059720695351. The next prime is 51059720695369. The reversal of 51059720695360 is 6359602795015.

It is an interprime number because it is at equal distance from previous prime (51059720695351) and next prime (51059720695369).

It is a junction number, because it is equal to n+sod(n) for n = 51059720695295 and 51059720695304.

It is not an unprimeable number, because it can be changed into a prime (51059720695369) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9760983945 + ... + 9760989175.

It is an arithmetic number, because the mean of its divisors is an integer number (216637855776).

Almost surely, 2^{51059720695360} 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 51059720695360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72790319540736).

51059720695360 is an abundant number, since it is smaller than the sum of its proper divisors (94520918386112).

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

51059720695360 is a wasteful number, since it uses less digits than its factorization.

51059720695360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5671 (or 5644 counting only the distinct ones).

The product of its (nonzero) digits is 15309000, while the sum is 58.

The spelling of 51059720695360 in words is "fifty-one trillion, fifty-nine billion, seven hundred twenty million, six hundred ninety-five thousand, three hundred sixty".