28108353012 has 12 divisors (see below), whose sum is σ = 65586157056. Its totient is φ = 9369451000.

The previous prime is 28108352989. The next prime is 28108353059. The reversal of 28108353012 is 21035380182.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1171181364 + ... + 1171181387.

It is an arithmetic number, because the mean of its divisors is an integer number (5465513088).

Almost surely, 2^28108353012 is an apocalyptic number.

It is an amenable number.

28108353012 is an abundant number, since it is smaller than the sum of its proper divisors (37477804044).

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

28108353012 is a wasteful number, since it uses less digits than its factorization.

28108353012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342362758 (or 2342362756 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 28108353012 in words is "twenty-eight billion, one hundred eight million, three hundred fifty-three thousand, twelve".