40345263145 has 16 divisors (see below), whose sum is σ = 52825367232. Its totient is φ = 29336592960.

The previous prime is 40345263139. The next prime is 40345263149. The reversal of 40345263145 is 54136254304.

It is not a de Polignac number, because 40345263145 - 2³ = 40345263137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40345263149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 246034 + ... + 375796.

It is an arithmetic number, because the mean of its divisors is an integer number (3301585452).

Almost surely, 2^40345263145 is an apocalyptic number.

It is an amenable number.

40345263145 is a deficient number, since it is larger than the sum of its proper divisors (12480104087).

40345263145 is a wasteful number, since it uses less digits than its factorization.

40345263145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135432.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 40345263145 in words is "forty billion, three hundred forty-five million, two hundred sixty-three thousand, one hundred forty-five".