40044213422545 has 16 divisors (see below), whose sum is σ = 49714178353920. Its totient is φ = 30928139032000.

The previous prime is 40044213422491. The next prime is 40044213422599. The reversal of 40044213422545 is 54522431244004.

It is an interprime number because it is at equal distance from previous prime (40044213422491) and next prime (40044213422599).

It is not a de Polignac number, because 40044213422545 - 2¹³ = 40044213414353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40044213422498 and 40044213422507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9688981 + ... + 13189570.

It is an arithmetic number, because the mean of its divisors is an integer number (3107136147120).

Almost surely, 2^{40044213422545} is an apocalyptic number.

It is an amenable number.

40044213422545 is a deficient number, since it is larger than the sum of its proper divisors (9669964931375).

40044213422545 is a wasteful number, since it uses less digits than its factorization.

40044213422545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22890656.

The product of its (nonzero) digits is 614400, while the sum is 40.

Adding to 40044213422545 its reverse (54522431244004), we get a palindrome (94566644666549).

The spelling of 40044213422545 in words is "forty trillion, forty-four billion, two hundred thirteen million, four hundred twenty-two thousand, five hundred forty-five".