3621175681 has 8 divisors (see below), whose sum is σ = 3782082240. Its totient is φ = 3463586928.

The previous prime is 3621175631. The next prime is 3621175699. The reversal of 3621175681 is 1865711263.

It is a happy number.

3621175681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3621175681 - 2⁹ = 3621175169 is a prime.

It is a super-2 number, since 2×3621175681² = 26225826625331627522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3621175631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827221 + ... + 831586.

It is an arithmetic number, because the mean of its divisors is an integer number (472760280).

Almost surely, 2^3621175681 is an apocalyptic number.

It is an amenable number.

3621175681 is a deficient number, since it is larger than the sum of its proper divisors (160906559).

3621175681 is a wasteful number, since it uses less digits than its factorization.

3621175681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658903.

The product of its digits is 60480, while the sum is 40.

The square root of 3621175681 is about 60176.2052725161. The cubic root of 3621175681 is about 1535.6180149630.

The spelling of 3621175681 in words is "three billion, six hundred twenty-one million, one hundred seventy-five thousand, six hundred eighty-one".