3641556343 has 2 divisors, whose sum is σ = 3641556344. Its totient is φ = 3641556342.

The previous prime is 3641556341. The next prime is 3641556353. The reversal of 3641556343 is 3436551463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3641556343 - 2¹ = 3641556341 is a prime.

Together with 3641556341, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3641556296 and 3641556305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3641556341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820778171 + 1820778172.

It is an arithmetic number, because the mean of its divisors is an integer number (1820778172).

Almost surely, 2^3641556343 is an apocalyptic number.

3641556343 is a deficient number, since it is larger than the sum of its proper divisors (1).

3641556343 is an equidigital number, since it uses as much as digits as its factorization.

3641556343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 40.

The square root of 3641556343 is about 60345.3092046101. The cubic root of 3641556343 is about 1538.4935432811.

The spelling of 3641556343 in words is "three billion, six hundred forty-one million, five hundred fifty-six thousand, three hundred forty-three".