3681373265 has 4 divisors (see below), whose sum is σ = 4417647924. Its totient is φ = 2945098608.

The previous prime is 3681373229. The next prime is 3681373279. The reversal of 3681373265 is 5623731863.

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 2776025344 + 905347921 = 52688^2 + 30089^2 .

It is a cyclic number.

It is not a de Polignac number, because 3681373265 - 2¹² = 3681369169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368137322 + ... + 368137331.

It is an arithmetic number, because the mean of its divisors is an integer number (1104411981).

Almost surely, 2^3681373265 is an apocalyptic number.

It is an amenable number.

3681373265 is a deficient number, since it is larger than the sum of its proper divisors (736274659).

3681373265 is an equidigital number, since it uses as much as digits as its factorization.

3681373265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736274658.

The product of its digits is 544320, while the sum is 44.

The square root of 3681373265 is about 60674.3212982230. The cubic root of 3681373265 is about 1544.0805461987.

The spelling of 3681373265 in words is "three billion, six hundred eighty-one million, three hundred seventy-three thousand, two hundred sixty-five".