34216640643 has 32 divisors (see below), whose sum is σ = 46686101760. Its totient is φ = 22285486080.

The previous prime is 34216640539. The next prime is 34216640659. The reversal of 34216640643 is 34604661243.

It is not a de Polignac number, because 34216640643 - 2⁸ = 34216640387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34216640663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16441363 + ... + 16443443.

It is an arithmetic number, because the mean of its divisors is an integer number (1458940680).

Almost surely, 2^34216640643 is an apocalyptic number.

34216640643 is a deficient number, since it is larger than the sum of its proper divisors (12469461117).

34216640643 is a wasteful number, since it uses less digits than its factorization.

34216640643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 34216640643 in words is "thirty-four billion, two hundred sixteen million, six hundred forty thousand, six hundred forty-three".