28837531512012 has 24 divisors (see below), whose sum is σ = 67289604186112. Its totient is φ = 9612220410000.

The previous prime is 28837531512011. The next prime is 28837531512061. The reversal of 28837531512012 is 21021513573882.

It is not an unprimeable number, because it can be changed into a prime (28837531512011) 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, 35847364 + ... + 36642987.

Almost surely, 2^{28837531512012} is an apocalyptic number.

It is an amenable number.

28837531512012 is an abundant number, since it is smaller than the sum of its proper divisors (38452072674100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28837531512012 is a wasteful number, since it uses less digits than its factorization.

28837531512012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72523509 (or 72523507 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 28837531512012 in words is "twenty-eight trillion, eight hundred thirty-seven billion, five hundred thirty-one million, five hundred twelve thousand, twelve".