13673653686 has 128 divisors (see below), whose sum is σ = 39531110400. Its totient is φ = 3397157280.

The previous prime is 13673653649. The next prime is 13673653691. The reversal of 13673653686 is 68635637631.

It is a happy number.

13673653686 is a `hidden beast` number, since 1 + 36 + 73 + 6 + 536 + 8 + 6 = 666.

It is a super-2 number, since 2×13673653686² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24145 + ... + 167123.

It is an arithmetic number, because the mean of its divisors is an integer number (308836800).

Almost surely, 2^13673653686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13673653686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19765555200).

13673653686 is an abundant number, since it is smaller than the sum of its proper divisors (25857456714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13673653686 is a wasteful number, since it uses less digits than its factorization.

13673653686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143031 (or 143025 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 54.

The spelling of 13673653686 in words is "thirteen billion, six hundred seventy-three million, six hundred fifty-three thousand, six hundred eighty-six".