28971087094305 has 192 divisors, whose sum is σ = 55800066067200. Its totient is φ = 14376314833920.

The previous prime is 28971087094291. The next prime is 28971087094319. The reversal of 28971087094305 is 50349078017982.

28971087094305 is a `hidden beast` number, since 2 + 8 + 97 + 108 + 7 + 0 + 9 + 430 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (28971087094291) and next prime (28971087094319).

It is not a de Polignac number, because 28971087094305 - 2⁸ = 28971087094049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 953326051 + ... + 953356439.

It is an arithmetic number, because the mean of its divisors is an integer number (290625344100).

Almost surely, 2^{28971087094305} is an apocalyptic number.

It is an amenable number.

28971087094305 is a deficient number, since it is larger than the sum of its proper divisors (26828978972895).

28971087094305 is a wasteful number, since it uses less digits than its factorization.

28971087094305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31166 (or 31154 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 28971087094305 in words is "twenty-eight trillion, nine hundred seventy-one billion, eighty-seven million, ninety-four thousand, three hundred five".