28092137481 has 6 divisors (see below), whose sum is σ = 40577531930. Its totient is φ = 18728091648.

The previous prime is 28092137467. The next prime is 28092137503. The reversal of 28092137481 is 18473129082.

It is a happy number.

28092137481 is a `hidden beast` number, since 2 + 80 + 92 + 1 + 3 + 7 + 481 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27244803600 + 847333881 = 165060^2 + 29109^2 .

It is not a de Polignac number, because 28092137481 - 2⁵ = 28092137449 is a prime.

It is a super-2 number, since 2×28092137481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28092137461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1560674296 + ... + 1560674313.

Almost surely, 2^28092137481 is an apocalyptic number.

It is an amenable number.

28092137481 is a deficient number, since it is larger than the sum of its proper divisors (12485394449).

28092137481 is a wasteful number, since it uses less digits than its factorization.

28092137481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121348615 (or 3121348612 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 28092137481 in words is "twenty-eight billion, ninety-two million, one hundred thirty-seven thousand, four hundred eighty-one".