2838274728381 has 12 divisors (see below), whose sum is σ = 4099876784640. Its totient is φ = 1892115480840.

The previous prime is 2838274728347. The next prime is 2838274728383. The reversal of 2838274728381 is 1838274728382.

2838274728381 is a `hidden beast` number, since 2 + 8 + 3 + 8 + 2 + 7 + 472 + 83 + 81 = 666.

It is not a de Polignac number, because 2838274728381 - 2⁷ = 2838274728253 is a prime.

It is a super-2 number, since 2×2838274728381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2838274728383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5372991 + ... + 5877548.

It is an arithmetic number, because the mean of its divisors is an integer number (341656398720).

Almost surely, 2^{2838274728381} is an apocalyptic number.

It is an amenable number.

2838274728381 is a deficient number, since it is larger than the sum of its proper divisors (1261602056259).

2838274728381 is a wasteful number, since it uses less digits than its factorization.

2838274728381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11278576 (or 11278573 counting only the distinct ones).

The product of its digits is 57802752, while the sum is 63.

Subtracting from 2838274728381 its reverse (1838274728382), we obtain a palindrome (999999999999).

The spelling of 2838274728381 in words is "two trillion, eight hundred thirty-eight billion, two hundred seventy-four million, seven hundred twenty-eight thousand, three hundred eighty-one".