3645142743 has 16 divisors (see below), whose sum is σ = 5303039616. Its totient is φ = 2208755040.

The previous prime is 3645142717. The next prime is 3645142751. The reversal of 3645142743 is 3472415463.

It is not a de Polignac number, because 3645142743 - 2¹⁶ = 3645077207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645142043) 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, 308796 + ... + 320382.

It is an arithmetic number, because the mean of its divisors is an integer number (331439976).

Almost surely, 2^3645142743 is an apocalyptic number.

3645142743 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3645142743 is a deficient number, since it is larger than the sum of its proper divisors (1657896873).

3645142743 is a wasteful number, since it uses less digits than its factorization.

3645142743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21134.

The product of its digits is 241920, while the sum is 39.

The square root of 3645142743 is about 60375.0175403701. The cubic root of 3645142743 is about 1538.9984412198.

The spelling of 3645142743 in words is "three billion, six hundred forty-five million, one hundred forty-two thousand, seven hundred forty-three".