28645022730454 has 32 divisors (see below), whose sum is σ = 46286645723136. Its totient is φ = 13216804292640.

The previous prime is 28645022730437. The next prime is 28645022730473. The reversal of 28645022730454 is 45403722054682.

It is a super-2 number, since 2×28645022730454² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1999366239 + ... + 1999380565.

It is an arithmetic number, because the mean of its divisors is an integer number (1446457678848).

Almost surely, 2^{28645022730454} is an apocalyptic number.

28645022730454 is a deficient number, since it is larger than the sum of its proper divisors (17641622992682).

28645022730454 is a wasteful number, since it uses less digits than its factorization.

28645022730454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32100.

The product of its (nonzero) digits is 12902400, while the sum is 52.

The spelling of 28645022730454 in words is "twenty-eight trillion, six hundred forty-five billion, twenty-two million, seven hundred thirty thousand, four hundred fifty-four".