28887619015885 has 16 divisors (see below), whose sum is σ = 39623674695552. Its totient is φ = 19805468731200.

The previous prime is 28887619015823. The next prime is 28887619015909. The reversal of 28887619015885 is 58851091678882.

It is not a de Polignac number, because 28887619015885 - 2⁷ = 28887619015757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66118911 + ... + 66554380.

It is an arithmetic number, because the mean of its divisors is an integer number (2476479668472).

Almost surely, 2^{28887619015885} is an apocalyptic number.

It is an amenable number.

28887619015885 is a deficient number, since it is larger than the sum of its proper divisors (10736055679667).

28887619015885 is a wasteful number, since it uses less digits than its factorization.

28887619015885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132679524.

The product of its (nonzero) digits is 619315200, while the sum is 76.

The spelling of 28887619015885 in words is "twenty-eight trillion, eight hundred eighty-seven billion, six hundred nineteen million, fifteen thousand, eight hundred eighty-five".