3643553574243 has 48 divisors (see below), whose sum is σ = 5836162911072. Its totient is φ = 2171759040000.

The previous prime is 3643553574223. The next prime is 3643553574247. The reversal of 3643553574243 is 3424753553463.

3643553574243 is a `hidden beast` number, since 3 + 6 + 4 + 3 + 553 + 5 + 7 + 42 + 43 = 666.

It is not a de Polignac number, because 3643553574243 - 2¹⁴ = 3643553557859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3643553574243.

It is not an unprimeable number, because it can be changed into a prime (3643553574247) 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, 59761671 + ... + 59822607.

It is an arithmetic number, because the mean of its divisors is an integer number (121586727314).

Almost surely, 2^{3643553574243} is an apocalyptic number.

3643553574243 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3643553574243 is a deficient number, since it is larger than the sum of its proper divisors (2192609336829).

3643553574243 is a wasteful number, since it uses less digits than its factorization.

3643553574243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70916 (or 70913 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 54.

The spelling of 3643553574243 in words is "three trillion, six hundred forty-three billion, five hundred fifty-three million, five hundred seventy-four thousand, two hundred forty-three".