686158153381 has 16 divisors (see below), whose sum is σ = 692771287680. Its totient is φ = 679575499200.

The previous prime is 686158153357. The next prime is 686158153433. The reversal of 686158153381 is 183351851686.

686158153381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 686158153381 - 2¹⁹ = 686157629093 is a prime.

It is a super-2 number, since 2×686158153381² (a number of 24 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 (686158153481) 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, 72474210 + ... + 72483676.

It is an arithmetic number, because the mean of its divisors is an integer number (43298205480).

Almost surely, 2^686158153381 is an apocalyptic number.

It is an amenable number.

686158153381 is a deficient number, since it is larger than the sum of its proper divisors (6613134299).

686158153381 is a wasteful number, since it uses less digits than its factorization.

686158153381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11004.

The product of its digits is 4147200, while the sum is 55.

The spelling of 686158153381 in words is "six hundred eighty-six billion, one hundred fifty-eight million, one hundred fifty-three thousand, three hundred eighty-one".