69690581768409 has 16 divisors (see below), whose sum is σ = 112441947055488. Its totient is φ = 37480649018112.

The previous prime is 69690581768407. The next prime is 69690581768413. The reversal of 69690581768409 is 90486718509696.

It is not a de Polignac number, because 69690581768409 - 2¹ = 69690581768407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69690581768407) 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, 97605856462 + ... + 97605857175.

It is an arithmetic number, because the mean of its divisors is an integer number (7027621690968).

Almost surely, 2^{69690581768409} is an apocalyptic number.

It is an amenable number.

69690581768409 is a deficient number, since it is larger than the sum of its proper divisors (42751365287079).

69690581768409 is a wasteful number, since it uses less digits than its factorization.

69690581768409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195211713664.

The product of its (nonzero) digits is 1410877440, while the sum is 78.

The spelling of 69690581768409 in words is "sixty-nine trillion, six hundred ninety billion, five hundred eighty-one million, seven hundred sixty-eight thousand, four hundred nine".