3641873761 has 4 divisors (see below), whose sum is σ = 3648412692. Its totient is φ = 3635334832.

The previous prime is 3641873731. The next prime is 3641873771. The reversal of 3641873761 is 1673781463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1673781463 = 97 ⋅17255479.

It can be written as a sum of positive squares in 2 ways, for example, as 1303571025 + 2338302736 = 36105^2 + 48356^2 .

It is a cyclic number.

It is not a de Polignac number, because 3641873761 - 2²³ = 3633485153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3641873731) 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, 3268630 + ... + 3269743.

It is an arithmetic number, because the mean of its divisors is an integer number (912103173).

Almost surely, 2^3641873761 is an apocalyptic number.

It is an amenable number.

3641873761 is a deficient number, since it is larger than the sum of its proper divisors (6538931).

3641873761 is an equidigital number, since it uses as much as digits as its factorization.

3641873761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538930.

The product of its digits is 508032, while the sum is 46.

The square root of 3641873761 is about 60347.9391611677. The cubic root of 3641873761 is about 1538.5382431574.

The spelling of 3641873761 in words is "three billion, six hundred forty-one million, eight hundred seventy-three thousand, seven hundred sixty-one".