53805889929681 has 24 divisors (see below), whose sum is σ = 77765987819520. Its totient is φ = 35849194986816.

The previous prime is 53805889929637. The next prime is 53805889929683. The reversal of 53805889929681 is 18692998850835.

53805889929681 is a `hidden beast` number, since 5 + 3 + 8 + 0 + 588 + 9 + 9 + 29 + 6 + 8 + 1 = 666.

It is not a de Polignac number, because 53805889929681 - 2¹³ = 53805889921489 is a prime.

It is a super-2 number, since 2×53805889929681² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53805889929681.

It is not an unprimeable number, because it can be changed into a prime (53805889929683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 248625840 + ... + 248842158.

It is an arithmetic number, because the mean of its divisors is an integer number (3240249492480).

Almost surely, 2^{53805889929681} is an apocalyptic number.

It is an amenable number.

53805889929681 is a deficient number, since it is larger than the sum of its proper divisors (23960097889839).

53805889929681 is a wasteful number, since it uses less digits than its factorization.

53805889929681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232685 (or 232682 counting only the distinct ones).

The product of its (nonzero) digits is 2687385600, while the sum is 81.

The spelling of 53805889929681 in words is "fifty-three trillion, eight hundred five billion, eight hundred eighty-nine million, nine hundred twenty-nine thousand, six hundred eighty-one".