2686836744 has 160 divisors (see below), whose sum is σ = 7736212440. Its totient is φ = 870912000.

The previous prime is 2686836709. The next prime is 2686836751. The reversal of 2686836744 is 4476386862.

It can be written as a sum of positive squares in 4 ways, for example, as 2091964644 + 594872100 = 45738^2 + 24390^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3991992 + ... + 3992664.

Almost surely, 2^2686836744 is an apocalyptic number.

2686836744 is a gapful number since it is divisible by the number (24) 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 2686836744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3868106220).

2686836744 is an abundant number, since it is smaller than the sum of its proper divisors (5049375696).

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

2686836744 is a wasteful number, since it uses less digits than its factorization.

2686836744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853 (or 840 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The square root of 2686836744 is about 51834.7059796812. The cubic root of 2686836744 is about 1390.2100581391.

The spelling of 2686836744 in words is "two billion, six hundred eighty-six million, eight hundred thirty-six thousand, seven hundred forty-four".