2686347180 has 240 divisors, whose sum is σ = 9273470976. Its totient is φ = 645563520.

The previous prime is 2686347179. The next prime is 2686347187. The reversal of 2686347180 is 817436862.

2686347180 is a `hidden beast` number, since 2 + 6 + 8 + 634 + 7 + 1 + 8 + 0 = 666.

It is a super-2 number, since 2×2686347180² = 14432922342987904800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2686347187) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2262547 + ... + 2263733.

Almost surely, 2^2686347180 is an apocalyptic number.

2686347180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2686347180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4636735488).

2686347180 is an abundant number, since it is smaller than the sum of its proper divisors (6587123796).

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

2686347180 is a wasteful number, since it uses less digits than its factorization.

2686347180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 2686347180 is about 51829.9834072904. The cubic root of 2686347180 is about 1390.1256170655.

It can be divided in two parts, 2686 and 347180, that added together give a triangular number (349866 = T₈₃₆).

The spelling of 2686347180 in words is "two billion, six hundred eighty-six million, three hundred forty-seven thousand, one hundred eighty".