6395942567644 has 36 divisors (see below), whose sum is σ = 13103243639976. Its totient is φ = 2723658878304.

The previous prime is 6395942567639. The next prime is 6395942567681. The reversal of 6395942567644 is 4467652495936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103893942 + ... + 103955485.

Almost surely, 2^{6395942567644} is an apocalyptic number.

It is an amenable number.

6395942567644 is an abundant number, since it is smaller than the sum of its proper divisors (6707301072332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6395942567644 is a wasteful number, since it uses less digits than its factorization.

6395942567644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207849602 (or 207849593 counting only the distinct ones).

The product of its digits is 1175731200, while the sum is 70.

The spelling of 6395942567644 in words is "six trillion, three hundred ninety-five billion, nine hundred forty-two million, five hundred sixty-seven thousand, six hundred forty-four".