28588741381 has 16 divisors (see below), whose sum is σ = 30375000000. Its totient is φ = 26831782656.

The previous prime is 28588741369. The next prime is 28588741387. The reversal of 28588741381 is 18314788582.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28588741381 is a prime.

It is a super-2 number, since 2×28588741381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28588741387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899245 + ... + 930493.

It is an arithmetic number, because the mean of its divisors is an integer number (1898437500).

Almost surely, 2^28588741381 is an apocalyptic number.

It is an amenable number.

28588741381 is a deficient number, since it is larger than the sum of its proper divisors (1786258619).

28588741381 is a wasteful number, since it uses less digits than its factorization.

28588741381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31716.

The product of its digits is 3440640, while the sum is 55.

The spelling of 28588741381 in words is "twenty-eight billion, five hundred eighty-eight million, seven hundred forty-one thousand, three hundred eighty-one".