3651243506 has 8 divisors (see below), whose sum is σ = 5482713180. Its totient is φ = 1823672448.

The previous prime is 3651243503. The next prime is 3651243517. The reversal of 3651243506 is 6053421563.

It can be written as a sum of positive squares in 2 ways, for example, as 3043177225 + 608066281 = 55165^2 + 24659^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3651243503) by changing a digit.

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, 972311 + ... + 976058.

Almost surely, 2^3651243506 is an apocalyptic number.

3651243506 is a deficient number, since it is larger than the sum of its proper divisors (1831469674).

3651243506 is a wasteful number, since it uses less digits than its factorization.

3651243506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949308.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 3651243506 is about 60425.5203204739. The cubic root of 3651243506 is about 1539.8565540758.

The spelling of 3651243506 in words is "three billion, six hundred fifty-one million, two hundred forty-three thousand, five hundred six".