3405638696693 has 4 divisors (see below), whose sum is σ = 3405642831168. Its totient is φ = 3405634562220.

The previous prime is 3405638696687. The next prime is 3405638696701. The reversal of 3405638696693 is 3966968365043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3405638696693 - 2¹² = 3405638692597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3405638636693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363743 + ... + 2635068.

It is an arithmetic number, because the mean of its divisors is an integer number (851410707792).

Almost surely, 2^{3405638696693} is an apocalyptic number.

It is an amenable number.

3405638696693 is a deficient number, since it is larger than the sum of its proper divisors (4134475).

3405638696693 is a wasteful number, since it uses less digits than its factorization.

3405638696693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134474.

The product of its (nonzero) digits is 453496320, while the sum is 68.

The spelling of 3405638696693 in words is "three trillion, four hundred five billion, six hundred thirty-eight million, six hundred ninety-six thousand, six hundred ninety-three".