53681399143 has 8 divisors (see below), whose sum is σ = 56749258800. Its totient is φ = 50637791808.

The previous prime is 53681399129. The next prime is 53681399153. The reversal of 53681399143 is 34199318635.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53681399143 is a prime.

It is a super-2 number, since 2×53681399143² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53681399153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6058528 + ... + 6067381.

It is an arithmetic number, because the mean of its divisors is an integer number (7093657350).

Almost surely, 2^53681399143 is an apocalyptic number.

53681399143 is a deficient number, since it is larger than the sum of its proper divisors (3067859657).

53681399143 is a wasteful number, since it uses less digits than its factorization.

53681399143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12126161.

The product of its digits is 2099520, while the sum is 52.

The spelling of 53681399143 in words is "fifty-three billion, six hundred eighty-one million, three hundred ninety-nine thousand, one hundred forty-three".