3641345170781 has 16 divisors (see below), whose sum is σ = 3709575679680. Its totient is φ = 3573334490880.

The previous prime is 3641345170777. The next prime is 3641345170817. The reversal of 3641345170781 is 1870715431463.

It is a cyclic number.

It is not a de Polignac number, because 3641345170781 - 2² = 3641345170777 is a prime.

It is a super-2 number, since 2×3641345170781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3641345175781) 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, 206568890 + ... + 206586516.

It is an arithmetic number, because the mean of its divisors is an integer number (231848479980).

Almost surely, 2^{3641345170781} is an apocalyptic number.

It is an amenable number.

3641345170781 is a deficient number, since it is larger than the sum of its proper divisors (68230508899).

3641345170781 is a wasteful number, since it uses less digits than its factorization.

3641345170781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23644.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 3641345170781 in words is "three trillion, six hundred forty-one billion, three hundred forty-five million, one hundred seventy thousand, seven hundred eighty-one".