28075105870 has 16 divisors (see below), whose sum is σ = 57754503648. Its totient is φ = 9625750560.

The previous prime is 28075105867. The next prime is 28075105879. The reversal of 28075105870 is 7850157082.

It is a super-2 number, since 2×28075105870² (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 (28075105879) 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, 200536401 + ... + 200536540.

It is an arithmetic number, because the mean of its divisors is an integer number (3609656478).

Almost surely, 2^28075105870 is an apocalyptic number.

28075105870 is an abundant number, since it is smaller than the sum of its proper divisors (29679397778).

28075105870 is a wasteful number, since it uses less digits than its factorization.

28075105870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401072955.

The product of its (nonzero) digits is 156800, while the sum is 43.

The spelling of 28075105870 in words is "twenty-eight billion, seventy-five million, one hundred five thousand, eight hundred seventy".