40450535465 has 4 divisors (see below), whose sum is σ = 48540642564. Its totient is φ = 32360428368.

The previous prime is 40450535443. The next prime is 40450535519. The reversal of 40450535465 is 56453505404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27513520384 + 12937015081 = 165872^2 + 113741^2 .

It is a cyclic number.

It is not a de Polignac number, because 40450535465 - 2²⁸ = 40182100009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4045053542 + ... + 4045053551.

It is an arithmetic number, because the mean of its divisors is an integer number (12135160641).

Almost surely, 2^40450535465 is an apocalyptic number.

It is an amenable number.

40450535465 is a deficient number, since it is larger than the sum of its proper divisors (8090107099).

40450535465 is an equidigital number, since it uses as much as digits as its factorization.

40450535465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090107098.

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 40450535465 in words is "forty billion, four hundred fifty million, five hundred thirty-five thousand, four hundred sixty-five".