40253145132544 has 80 divisors (see below), whose sum is σ = 80850187462176. Its totient is φ = 20020876288000.

The previous prime is 40253145132451. The next prime is 40253145132593. The reversal of 40253145132544 is 44523154135204.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40253145132544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627442869 + ... + 627507019.

Almost surely, 2^{40253145132544} 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 40253145132544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40425093731088).

40253145132544 is an abundant number, since it is smaller than the sum of its proper divisors (40597042329632).

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

40253145132544 is an equidigital number, since it uses as much as digits as its factorization.

40253145132544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70587 (or 70571 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 40253145132544 its reverse (44523154135204), we get a palindrome (84776299267748).

The spelling of 40253145132544 in words is "forty trillion, two hundred fifty-three billion, one hundred forty-five million, one hundred thirty-two thousand, five hundred forty-four".