2686193556 has 96 divisors (see below), whose sum is σ = 6735657600. Its totient is φ = 831559680.

The previous prime is 2686193551. The next prime is 2686193561. The reversal of 2686193556 is 6553916862.

It is an interprime number because it is at equal distance from previous prime (2686193551) and next prime (2686193561).

It is a junction number, because it is equal to n+sod(n) for n = 2686193499 and 2686193508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686193551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1040275 + ... + 1042853.

It is an arithmetic number, because the mean of its divisors is an integer number (70163100).

Almost surely, 2^2686193556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2686193556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3367828800).

2686193556 is an abundant number, since it is smaller than the sum of its proper divisors (4049464044).

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

2686193556 is a wasteful number, since it uses less digits than its factorization.

2686193556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729 (or 2727 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 51.

The square root of 2686193556 is about 51828.5013867852. The cubic root of 2686193556 is about 1390.0991175460.

The spelling of 2686193556 in words is "two billion, six hundred eighty-six million, one hundred ninety-three thousand, five hundred fifty-six".