2681238744 has 48 divisors (see below), whose sum is σ = 7457957520. Its totient is φ = 869590080.

The previous prime is 2681238737. The next prime is 2681238773. The reversal of 2681238744 is 4478321862.

It is a happy number.

2681238744 is a `hidden beast` number, since 268 + 1 + 2 + 387 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2681238744.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 500572 + ... + 505899.

It is an arithmetic number, because the mean of its divisors is an integer number (155374115).

Almost surely, 2^2681238744 is an apocalyptic number.

2681238744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2681238744 is an abundant number, since it is smaller than the sum of its proper divisors (4776718776).

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

2681238744 is a wasteful number, since it uses less digits than its factorization.

2681238744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006520 (or 1006513 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 2681238744 is about 51780.6792539457. The cubic root of 2681238744 is about 1389.2438901428.

It can be divided in two parts, 26812 and 38744, that added together give a palindrome (65556).

The spelling of 2681238744 in words is "two billion, six hundred eighty-one million, two hundred thirty-eight thousand, seven hundred forty-four".