28731871873034 has 12 divisors (see below), whose sum is σ = 47371970567922. Its totient is φ = 13059941760360.

The previous prime is 28731871873031. The next prime is 28731871873069. The reversal of 28731871873034 is 43037817813782.

It can be written as a sum of positive squares in only one way, i.e., 26783181511009 + 1948690362025 = 5175247^2 + 1395955^2 .

It is a super-2 number, since 2×28731871873034² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28731871873031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59363371397 + ... + 59363371880.

Almost surely, 2^{28731871873034} is an apocalyptic number.

28731871873034 is a deficient number, since it is larger than the sum of its proper divisors (18640098694888).

28731871873034 is a wasteful number, since it uses less digits than its factorization.

28731871873034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118726743301 (or 118726743290 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 62.

The spelling of 28731871873034 in words is "twenty-eight trillion, seven hundred thirty-one billion, eight hundred seventy-one million, eight hundred seventy-three thousand, thirty-four".