52071440740 has 96 divisors (see below), whose sum is σ = 122592693888. Its totient is φ = 18413952000.

The previous prime is 52071440737. The next prime is 52071440741. The reversal of 52071440740 is 4704417025.

It is a happy number.

It is a super-2 number, since 2×52071440740² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52071440696 and 52071440705.

It is not an unprimeable number, because it can be changed into a prime (52071440741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2850235 + ... + 2868445.

It is an arithmetic number, because the mean of its divisors is an integer number (1277007228).

Almost surely, 2^52071440740 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 52071440740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61296346944).

52071440740 is an abundant number, since it is smaller than the sum of its proper divisors (70521253148).

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

52071440740 is a wasteful number, since it uses less digits than its factorization.

52071440740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18589 (or 18587 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 34.

Adding to 52071440740 its reverse (4704417025), we get a palindrome (56775857765).

The spelling of 52071440740 in words is "fifty-two billion, seventy-one million, four hundred forty thousand, seven hundred forty".