3645732453 has 16 divisors (see below), whose sum is σ = 5322040896. Its totient is φ = 2201552640.

The previous prime is 3645732427. The next prime is 3645732469. The reversal of 3645732453 is 3542375463.

It is not a de Polignac number, because 3645732453 - 2⁹ = 3645731941 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645732653) 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, 190276 + ... + 208557.

It is an arithmetic number, because the mean of its divisors is an integer number (332627556).

Almost surely, 2^3645732453 is an apocalyptic number.

3645732453 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3645732453 is a deficient number, since it is larger than the sum of its proper divisors (1676308443).

3645732453 is a wasteful number, since it uses less digits than its factorization.

3645732453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399124.

The product of its digits is 907200, while the sum is 42.

The square root of 3645732453 is about 60379.9010681535. The cubic root of 3645732453 is about 1539.0814296327.

The spelling of 3645732453 in words is "three billion, six hundred forty-five million, seven hundred thirty-two thousand, four hundred fifty-three".