3643730021043 has 48 divisors (see below), whose sum is σ = 6030344376576. Its totient is φ = 2076838695360.

The previous prime is 3643730021027. The next prime is 3643730021051. The reversal of 3643730021043 is 3401200373463.

3643730021043 is a `hidden beast` number, since 3 + 6 + 437 + 3 + 0 + 0 + 210 + 4 + 3 = 666.

It is not a de Polignac number, because 3643730021043 - 2⁴ = 3643730021027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3643730020989 and 3643730021007.

It is not an unprimeable number, because it can be changed into a prime (3643730031043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109302888 + ... + 109336218.

It is an arithmetic number, because the mean of its divisors is an integer number (125632174512).

Almost surely, 2^{3643730021043} is an apocalyptic number.

3643730021043 is a deficient number, since it is larger than the sum of its proper divisors (2386614355533).

3643730021043 is a wasteful number, since it uses less digits than its factorization.

3643730021043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37704 (or 37701 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 36.

The spelling of 3643730021043 in words is "three trillion, six hundred forty-three billion, seven hundred thirty million, twenty-one thousand, forty-three".