28154137541 has 16 divisors (see below), whose sum is σ = 30152217600. Its totient is φ = 26240393088.

The previous prime is 28154137519. The next prime is 28154137637. The reversal of 28154137541 is 14573145182.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28154137541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28154137511) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 41981 + ... + 240978.

It is an arithmetic number, because the mean of its divisors is an integer number (1884513600).

Almost surely, 2^28154137541 is an apocalyptic number.

It is an amenable number.

28154137541 is a deficient number, since it is larger than the sum of its proper divisors (1998080059).

28154137541 is a wasteful number, since it uses less digits than its factorization.

28154137541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283108.

The product of its digits is 134400, while the sum is 41.

The spelling of 28154137541 in words is "twenty-eight billion, one hundred fifty-four million, one hundred thirty-seven thousand, five hundred forty-one".