40441402012501 has 12 divisors (see below), whose sum is σ = 47045587998720. Its totient is φ = 34662947631480.

The previous prime is 40441402012499. The next prime is 40441402012541. The reversal of 40441402012501 is 10521020414404.

It is a happy number.

It is not a de Polignac number, because 40441402012501 - 2¹ = 40441402012499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40441402012501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40441402012541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11683071 + ... + 14743708.

It is an arithmetic number, because the mean of its divisors is an integer number (3920465666560).

Almost surely, 2^{40441402012501} is an apocalyptic number.

It is an amenable number.

40441402012501 is a deficient number, since it is larger than the sum of its proper divisors (6604185986219).

40441402012501 is a wasteful number, since it uses less digits than its factorization.

40441402012501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26458024 (or 26458017 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 40441402012501 its reverse (10521020414404), we get a palindrome (50962422426905).

The spelling of 40441402012501 in words is "forty trillion, four hundred forty-one billion, four hundred two million, twelve thousand, five hundred one".