686386731741 has 16 divisors (see below), whose sum is σ = 925736071680. Its totient is φ = 452317282560.

The previous prime is 686386731731. The next prime is 686386731749. The reversal of 686386731741 is 147137683686.

It is not a de Polignac number, because 686386731741 - 2¹⁵ = 686386698973 is a prime.

It is a super-2 number, since 2×686386731741² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686386731749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542196 + ... + 1291026.

It is an arithmetic number, because the mean of its divisors is an integer number (57858504480).

Almost surely, 2^686386731741 is an apocalyptic number.

It is an amenable number.

686386731741 is a deficient number, since it is larger than the sum of its proper divisors (239349339939).

686386731741 is a wasteful number, since it uses less digits than its factorization.

686386731741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752356.

The product of its digits is 24385536, while the sum is 60.

The spelling of 686386731741 in words is "six hundred eighty-six billion, three hundred eighty-six million, seven hundred thirty-one thousand, seven hundred forty-one".