51970441536 has 448 divisors, whose sum is σ = 174520514560. Its totient is φ = 15049359360.

The previous prime is 51970441531. The next prime is 51970441547. The reversal of 51970441536 is 63514407915.

51970441536 is a `hidden beast` number, since 5 + 1 + 9 + 70 + 4 + 41 + 536 = 666.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 51970441536 = 742³ + 3722³ = 1140³ + 3696³.

It is a junction number, because it is equal to n+sod(n) for n = 51970441491 and 51970441500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51970441531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25765200 + ... + 25767216.

It is an arithmetic number, because the mean of its divisors is an integer number (389554720).

Almost surely, 2^51970441536 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 51970441536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87260257280).

51970441536 is an abundant number, since it is smaller than the sum of its proper divisors (122550073024).

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

51970441536 is a wasteful number, since it uses less digits than its factorization.

51970441536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 51970441536 in words is "fifty-one billion, nine hundred seventy million, four hundred forty-one thousand, five hundred thirty-six".