3651421493 has 8 divisors (see below), whose sum is σ = 3734906112. Its totient is φ = 3568178416.

The previous prime is 3651421489. The next prime is 3651421519. The reversal of 3651421493 is 3941241563.

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 3651421493 - 2² = 3651421489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3651421693) 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, 29630 + ... + 90447.

It is an arithmetic number, because the mean of its divisors is an integer number (466863264).

Almost surely, 2^3651421493 is an apocalyptic number.

It is an amenable number.

3651421493 is a deficient number, since it is larger than the sum of its proper divisors (83484619).

3651421493 is a wasteful number, since it uses less digits than its factorization.

3651421493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120771.

The product of its digits is 77760, while the sum is 38.

The square root of 3651421493 is about 60426.9930825620. The cubic root of 3651421493 is about 1539.8815747749.

The spelling of 3651421493 in words is "three billion, six hundred fifty-one million, four hundred twenty-one thousand, four hundred ninety-three".