40402342120545 has 48 divisors (see below), whose sum is σ = 70726984840512. Its totient is φ = 21333920400000.

The previous prime is 40402342120519. The next prime is 40402342120579. The reversal of 40402342120545 is 54502124320404.

40402342120545 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 23 + 421 + 205 + 4 + 5 = 666.

It is not a de Polignac number, because 40402342120545 - 2⁹ = 40402342120033 is a prime.

It is a super-2 number, since 2×40402342120545² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5673670 + ... + 10629920.

It is an arithmetic number, because the mean of its divisors is an integer number (1473478850844).

Almost surely, 2^{40402342120545} is an apocalyptic number.

40402342120545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40402342120545 is a deficient number, since it is larger than the sum of its proper divisors (30324642719967).

40402342120545 is a wasteful number, since it uses less digits than its factorization.

40402342120545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958062 (or 4958059 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 40402342120545 its reverse (54502124320404), we get a palindrome (94904466440949).

The spelling of 40402342120545 in words is "forty trillion, four hundred two billion, three hundred forty-two million, one hundred twenty thousand, five hundred forty-five".