28057722358 has 16 divisors (see below), whose sum is σ = 43710759936. Its totient is φ = 13493022120.

The previous prime is 28057722317. The next prime is 28057722359. The reversal of 28057722358 is 85322775082.

It is a super-2 number, since 2×28057722358² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28057722359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378066 + ... + 1398277.

It is an arithmetic number, because the mean of its divisors is an integer number (2731922496).

Almost surely, 2^28057722358 is an apocalyptic number.

28057722358 is a deficient number, since it is larger than the sum of its proper divisors (15653037578).

28057722358 is a wasteful number, since it uses less digits than its factorization.

28057722358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776539.

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 28057722358 in words is "twenty-eight billion, fifty-seven million, seven hundred twenty-two thousand, three hundred fifty-eight".