3835722690689 has 4 divisors (see below), whose sum is σ = 3835939330224. Its totient is φ = 3835506051156.

The previous prime is 3835722690629. The next prime is 3835722690697. The reversal of 3835722690689 is 9860962275383.

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.

It is a cyclic number.

It is not a de Polignac number, because 3835722690689 - 2⁸ = 3835722690433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3835722690629) 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, 108293207 + ... + 108328620.

It is an arithmetic number, because the mean of its divisors is an integer number (958984832556).

Almost surely, 2^{3835722690689} is an apocalyptic number.

It is an amenable number.

3835722690689 is a deficient number, since it is larger than the sum of its proper divisors (216639535).

3835722690689 is a wasteful number, since it uses less digits than its factorization.

3835722690689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216639534.

The product of its (nonzero) digits is 235146240, while the sum is 68.

The spelling of 3835722690689 in words is "three trillion, eight hundred thirty-five billion, seven hundred twenty-two million, six hundred ninety thousand, six hundred eighty-nine".