3653621463 has 16 divisors (see below), whose sum is σ = 5156680320. Its totient is φ = 2297061984.

The previous prime is 3653621449. The next prime is 3653621501. The reversal of 3653621463 is 3641263563.

It is not a de Polignac number, because 3653621463 - 2⁹ = 3653620951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3653621863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484581 + ... + 492062.

It is an arithmetic number, because the mean of its divisors is an integer number (322292520).

Almost surely, 2^3653621463 is an apocalyptic number.

3653621463 is a deficient number, since it is larger than the sum of its proper divisors (1503058857).

3653621463 is a wasteful number, since it uses less digits than its factorization.

3653621463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976718.

The product of its digits is 233280, while the sum is 39.

The square root of 3653621463 is about 60445.1938784218. The cubic root of 3653621463 is about 1540.1907706268.

The spelling of 3653621463 in words is "three billion, six hundred fifty-three million, six hundred twenty-one thousand, four hundred sixty-three".