53643140637639 has 64 divisors (see below), whose sum is σ = 82608904685568. Its totient is φ = 30330120038400.

The previous prime is 53643140637637. The next prime is 53643140637659. The reversal of 53643140637639 is 93673604134635.

53643140637639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53643140637639 - 2¹ = 53643140637637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53643140637631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 717491019 + ... + 717565779.

It is an arithmetic number, because the mean of its divisors is an integer number (1290764135712).

Almost surely, 2^{53643140637639} is an apocalyptic number.

53643140637639 is a deficient number, since it is larger than the sum of its proper divisors (28965764047929).

53643140637639 is a wasteful number, since it uses less digits than its factorization.

53643140637639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75888.

The product of its (nonzero) digits is 88179840, while the sum is 60.

The spelling of 53643140637639 in words is "fifty-three trillion, six hundred forty-three billion, one hundred forty million, six hundred thirty-seven thousand, six hundred thirty-nine".