3671700743561 has 4 divisors (see below), whose sum is σ = 3682102162452. Its totient is φ = 3661299324672.

The previous prime is 3671700743551. The next prime is 3671700743563. The reversal of 3671700743561 is 1653470071763.

It is a happy number.

3671700743561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 457726668025 + 3213974075536 = 676555^2 + 1792756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3671700743561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3671700743563) 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, 5200708916 + ... + 5200709621.

It is an arithmetic number, because the mean of its divisors is an integer number (920525540613).

Almost surely, 2^{3671700743561} is an apocalyptic number.

It is an amenable number.

3671700743561 is a deficient number, since it is larger than the sum of its proper divisors (10401418891).

3671700743561 is a wasteful number, since it uses less digits than its factorization.

3671700743561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401418890.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The spelling of 3671700743561 in words is "three trillion, six hundred seventy-one billion, seven hundred million, seven hundred forty-three thousand, five hundred sixty-one".