28115573810 has 16 divisors (see below), whose sum is σ = 51363377856. Its totient is φ = 11078375088.

The previous prime is 28115573797. The next prime is 28115573813. The reversal of 28115573810 is 1837551182.

It is a super-2 number, since 2×28115573810² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28115573813) 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 7 ways as a sum of consecutive naturals, for example, 20981102 + ... + 20982441.

It is an arithmetic number, because the mean of its divisors is an integer number (3210211116).

Almost surely, 2^28115573810 is an apocalyptic number.

28115573810 is a deficient number, since it is larger than the sum of its proper divisors (23247804046).

28115573810 is a wasteful number, since it uses less digits than its factorization.

28115573810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41963617.

The product of its (nonzero) digits is 67200, while the sum is 41.

The spelling of 28115573810 in words is "twenty-eight billion, one hundred fifteen million, five hundred seventy-three thousand, eight hundred ten".