3691806629469 has 16 divisors (see below), whose sum is σ = 5626757640192. Its totient is φ = 2109173461488.

The previous prime is 3691806629411. The next prime is 3691806629471. The reversal of 3691806629469 is 9649266081963.

It is not a de Polignac number, because 3691806629469 - 2¹⁶ = 3691806563933 is a prime.

It is a super-2 number, since 2×3691806629469² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3691806627469) 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 in 15 ways as a sum of consecutive naturals, for example, 17824869 + ... + 18030794.

It is an arithmetic number, because the mean of its divisors is an integer number (351672352512).

Almost surely, 2^{3691806629469} is an apocalyptic number.

It is an amenable number.

3691806629469 is a deficient number, since it is larger than the sum of its proper divisors (1934951010723).

3691806629469 is a wasteful number, since it uses less digits than its factorization.

3691806629469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35860576.

The product of its (nonzero) digits is 181398528, while the sum is 69.

The spelling of 3691806629469 in words is "three trillion, six hundred ninety-one billion, eight hundred six million, six hundred twenty-nine thousand, four hundred sixty-nine".