40745664444518 has 32 divisors (see below), whose sum is σ = 70644052346400. Its totient is φ = 17419624706560.

The previous prime is 40745664444517. The next prime is 40745664444571. The reversal of 40745664444518 is 81544446654704.

It is a super-3 number, since 3×40745664444518³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40745664444517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35927093 + ... + 37043856.

It is an arithmetic number, because the mean of its divisors is an integer number (2207626635825).

Almost surely, 2^{40745664444518} is an apocalyptic number.

40745664444518 is a deficient number, since it is larger than the sum of its proper divisors (29898387901882).

40745664444518 is a wasteful number, since it uses less digits than its factorization.

40745664444518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72972472.

The product of its (nonzero) digits is 206438400, while the sum is 62.

The spelling of 40745664444518 in words is "forty trillion, seven hundred forty-five billion, six hundred sixty-four million, four hundred forty-four thousand, five hundred eighteen".