40697398190569 has 2 divisors, whose sum is σ = 40697398190570. Its totient is φ = 40697398190568.

The previous prime is 40697398190563. The next prime is 40697398190609. The reversal of 40697398190569 is 96509189379604.

40697398190569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40347738848169 + 349659342400 = 6351987^2 + 591320^2 .

It is a cyclic number.

It is not a de Polignac number, because 40697398190569 - 2⁴³ = 31901305168361 is a prime.

It is a super-2 number, since 2×40697398190569² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40697398190495 and 40697398190504.

It is not a weakly prime, because it can be changed into another prime (40697398190563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20348699095284 + 20348699095285.

It is an arithmetic number, because the mean of its divisors is an integer number (20348699095285).

Almost surely, 2^{40697398190569} is an apocalyptic number.

It is an amenable number.

40697398190569 is a deficient number, since it is larger than the sum of its proper divisors (1).

40697398190569 is an equidigital number, since it uses as much as digits as its factorization.

40697398190569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 793618560, while the sum is 76.

The spelling of 40697398190569 in words is "forty trillion, six hundred ninety-seven billion, three hundred ninety-eight million, one hundred ninety thousand, five hundred sixty-nine".