10140252530440 has 128 divisors (see below), whose sum is σ = 24060476325600. Its totient is φ = 3840595476480.

The previous prime is 10140252530417. The next prime is 10140252530449. The reversal of 10140252530440 is 4403525204101.

It can be written as a sum of positive squares in 16 ways, for example, as 283528560676 + 9856723969764 = 532474^2 + 3139542^2 .

It is not an unprimeable number, because it can be changed into a prime (10140252530449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23633502 + ... + 24058738.

Almost surely, 2^{10140252530440} is an apocalyptic number.

10140252530440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10140252530440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12030238162800).

10140252530440 is an abundant number, since it is smaller than the sum of its proper divisors (13920223795160).

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

10140252530440 is a wasteful number, since it uses less digits than its factorization.

10140252530440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425675 (or 425671 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 10140252530440 its reverse (4403525204101), we get a palindrome (14543777734541).

The spelling of 10140252530440 in words is "ten trillion, one hundred forty billion, two hundred fifty-two million, five hundred thirty thousand, four hundred forty".