40451444444453 has 4 divisors (see below), whose sum is σ = 46230222222240. Its totient is φ = 34672666666668.

The previous prime is 40451444444441. The next prime is 40451444444597. The reversal of 40451444444453 is 35444444415404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40451444444453 - 2²² = 40451440250149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40451444444413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2889388888883 + ... + 2889388888896.

It is an arithmetic number, because the mean of its divisors is an integer number (11557555555560).

Almost surely, 2^{40451444444453} is an apocalyptic number.

It is an amenable number.

40451444444453 is a deficient number, since it is larger than the sum of its proper divisors (5778777777787).

40451444444453 is an equidigital number, since it uses as much as digits as its factorization.

40451444444453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778777777786.

The product of its (nonzero) digits is 19660800, while the sum is 50.

Adding to 40451444444453 its reverse (35444444415404), we get a palindrome (75895888859857).

The spelling of 40451444444453 in words is "forty trillion, four hundred fifty-one billion, four hundred forty-four million, four hundred forty-four thousand, four hundred fifty-three".