3649171271 has 2 divisors, whose sum is σ = 3649171272. Its totient is φ = 3649171270.

The previous prime is 3649171249. The next prime is 3649171291. The reversal of 3649171271 is 1721719463.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3649171271 - 2¹⁰ = 3649170247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3649171291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824585635 + 1824585636.

It is an arithmetic number, because the mean of its divisors is an integer number (1824585636).

Almost surely, 2^3649171271 is an apocalyptic number.

3649171271 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649171271 is an equidigital number, since it uses as much as digits as its factorization.

3649171271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 3649171271 is about 60408.3708686139. The cubic root of 3649171271 is about 1539.5651877238.

The spelling of 3649171271 in words is "three billion, six hundred forty-nine million, one hundred seventy-one thousand, two hundred seventy-one".