3649345901 has 2 divisors, whose sum is σ = 3649345902. Its totient is φ = 3649345900.

The previous prime is 3649345897. The next prime is 3649345949. The reversal of 3649345901 is 1095439463.

3649345901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3642001801 + 7344100 = 60349^2 + 2710^2 .

It is an emirp because it is prime and its reverse (1095439463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3649345901 - 2² = 3649345897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3649345981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824672950 + 1824672951.

It is an arithmetic number, because the mean of its divisors is an integer number (1824672951).

Almost surely, 2^3649345901 is an apocalyptic number.

It is an amenable number.

3649345901 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649345901 is an equidigital number, since it uses as much as digits as its factorization.

3649345901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 3649345901 is about 60409.8162635842. The cubic root of 3649345901 is about 1539.5897458093.

The spelling of 3649345901 in words is "three billion, six hundred forty-nine million, three hundred forty-five thousand, nine hundred one".