28872255087215 has 8 divisors (see below), whose sum is σ = 34799334767280. Its totient is φ = 22996051628032.

The previous prime is 28872255087211. The next prime is 28872255087217. The reversal of 28872255087215 is 51278055227882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28872255087215 - 2² = 28872255087211 is a prime.

It is a super-2 number, since 2×28872255087215² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28872255087211) 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, 12719053970 + ... + 12719056239.

It is an arithmetic number, because the mean of its divisors is an integer number (4349916845910).

Almost surely, 2^{28872255087215} is an apocalyptic number.

28872255087215 is a deficient number, since it is larger than the sum of its proper divisors (5927079680065).

28872255087215 is a wasteful number, since it uses less digits than its factorization.

28872255087215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25438110441.

The product of its (nonzero) digits is 50176000, while the sum is 62.

The spelling of 28872255087215 in words is "twenty-eight trillion, eight hundred seventy-two billion, two hundred fifty-five million, eighty-seven thousand, two hundred fifteen".