40144014453 has 4 divisors (see below), whose sum is σ = 53525352608. Its totient is φ = 26762676300.

The previous prime is 40144014451. The next prime is 40144014461. The reversal of 40144014453 is 35441044104.

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 not a de Polignac number, because 40144014453 - 2¹ = 40144014451 is a prime.

It is a super-4 number, since 4×40144014453⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 40144014453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144014451) 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, 6690669073 + ... + 6690669078.

It is an arithmetic number, because the mean of its divisors is an integer number (13381338152).

Almost surely, 2^40144014453 is an apocalyptic number.

It is an amenable number.

40144014453 is a deficient number, since it is larger than the sum of its proper divisors (13381338155).

40144014453 is a wasteful number, since it uses less digits than its factorization.

40144014453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13381338154.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 40144014453 its reverse (35441044104), we get a palindrome (75585058557).

The spelling of 40144014453 in words is "forty billion, one hundred forty-four million, fourteen thousand, four hundred fifty-three".