34640221671 has 64 divisors (see below), whose sum is σ = 57337251840. Its totient is φ = 20489224320.

The previous prime is 34640221643. The next prime is 34640221673. The reversal of 34640221671 is 17612204643.

34640221671 is a `hidden beast` number, since 3 + 4 + 640 + 2 + 2 + 1 + 6 + 7 + 1 = 666.

It is not a de Polignac number, because 34640221671 - 2¹¹ = 34640219623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34640221673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5203381 + ... + 5210033.

It is an arithmetic number, because the mean of its divisors is an integer number (895894560).

Almost surely, 2^34640221671 is an apocalyptic number.

34640221671 is a deficient number, since it is larger than the sum of its proper divisors (22697030169).

34640221671 is a wasteful number, since it uses less digits than its factorization.

34640221671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7093 (or 7087 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 34640221671 in words is "thirty-four billion, six hundred forty million, two hundred twenty-one thousand, six hundred seventy-one".