40596388669 has 2 divisors, whose sum is σ = 40596388670. Its totient is φ = 40596388668.

The previous prime is 40596388643. The next prime is 40596388681. The reversal of 40596388669 is 96688369504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40245575769 + 350812900 = 200613^2 + 18730^2 .

It is a cyclic number.

It is not a de Polignac number, because 40596388669 - 2³¹ = 38448905021 is a prime.

It is a super-2 number, since 2×40596388669² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40596388669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40596388639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20298194334 + 20298194335.

It is an arithmetic number, because the mean of its divisors is an integer number (20298194335).

Almost surely, 2^40596388669 is an apocalyptic number.

It is an amenable number.

40596388669 is a deficient number, since it is larger than the sum of its proper divisors (1).

40596388669 is an equidigital number, since it uses as much as digits as its factorization.

40596388669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67184640, while the sum is 64.

The spelling of 40596388669 in words is "forty billion, five hundred ninety-six million, three hundred eighty-eight thousand, six hundred sixty-nine".