3648245851 has 4 divisors (see below), whose sum is σ = 3648717112. Its totient is φ = 3647774592.

The previous prime is 3648245789. The next prime is 3648245857. The reversal of 3648245851 is 1585428463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3648245851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3648245857) 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, 223821 + ... + 239566.

It is an arithmetic number, because the mean of its divisors is an integer number (912179278).

Almost surely, 2^3648245851 is an apocalyptic number.

3648245851 is a deficient number, since it is larger than the sum of its proper divisors (471261).

3648245851 is an equidigital number, since it uses as much as digits as its factorization.

3648245851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471260.

The product of its digits is 921600, while the sum is 46.

The square root of 3648245851 is about 60400.7106829050. The cubic root of 3648245851 is about 1539.4350335267.

The spelling of 3648245851 in words is "three billion, six hundred forty-eight million, two hundred forty-five thousand, eight hundred fifty-one".