3661091741 has 4 divisors (see below), whose sum is σ = 3853780800. Its totient is φ = 3468402684.

The previous prime is 3661091699. The next prime is 3661091771. The reversal of 3661091741 is 1471901663.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 1471901663 = 433 ⋅3399311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3661091741 is a prime.

It is a super-2 number, since 2×3661091741² = 26807185472036822162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3661091695 and 3661091704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661091771) 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, 96344501 + ... + 96344538.

It is an arithmetic number, because the mean of its divisors is an integer number (963445200).

Almost surely, 2^3661091741 is an apocalyptic number.

It is an amenable number.

3661091741 is a deficient number, since it is larger than the sum of its proper divisors (192689059).

3661091741 is a wasteful number, since it uses less digits than its factorization.

3661091741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192689058.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 3661091741 is about 60506.9561372905. The cubic root of 3661091741 is about 1541.2397591137.

The spelling of 3661091741 in words is "three billion, six hundred sixty-one million, ninety-one thousand, seven hundred forty-one".