40534665615373 has 2 divisors, whose sum is σ = 40534665615374. Its totient is φ = 40534665615372.

The previous prime is 40534665615359. The next prime is 40534665615413. The reversal of 40534665615373 is 37351656643504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40297065912009 + 237599703364 = 6347997^2 + 487442^2 .

It is a cyclic number.

It is not a de Polignac number, because 40534665615373 - 2³³ = 40526075680781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40534665615173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20267332807686 + 20267332807687.

It is an arithmetic number, because the mean of its divisors is an integer number (20267332807687).

Almost surely, 2^{40534665615373} is an apocalyptic number.

It is an amenable number.

40534665615373 is a deficient number, since it is larger than the sum of its proper divisors (1).

40534665615373 is an equidigital number, since it uses as much as digits as its factorization.

40534665615373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648000, while the sum is 58.

The spelling of 40534665615373 in words is "forty trillion, five hundred thirty-four billion, six hundred sixty-five million, six hundred fifteen thousand, three hundred seventy-three".