40075145465 has 32 divisors (see below), whose sum is σ = 49094100000. Its totient is φ = 31399280640.

The previous prime is 40075145459. The next prime is 40075145489. The reversal of 40075145465 is 56454157004.

It can be written as a sum of positive squares in 16 ways, for example, as 22393326736 + 17681818729 = 149644^2 + 132973^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40075145465 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32085161 + ... + 32086409.

It is an arithmetic number, because the mean of its divisors is an integer number (1534190625).

Almost surely, 2^40075145465 is an apocalyptic number.

It is an amenable number.

40075145465 is a deficient number, since it is larger than the sum of its proper divisors (9018954535).

40075145465 is a wasteful number, since it uses less digits than its factorization.

40075145465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997.

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 40075145465 in words is "forty billion, seventy-five million, one hundred forty-five thousand, four hundred sixty-five".