28297086739080 has 32 divisors (see below), whose sum is σ = 84891260217600. Its totient is φ = 7545889797056.

The previous prime is 28297086739073. The next prime is 28297086739087. The reversal of 28297086739080 is 8093768079282.

It is an interprime number because it is at equal distance from previous prime (28297086739073) and next prime (28297086739087).

It is a junction number, because it is equal to n+sod(n) for n = 28297086738996 and 28297086739014.

It is not an unprimeable number, because it can be changed into a prime (28297086739087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117904527960 + ... + 117904528199.

It is an arithmetic number, because the mean of its divisors is an integer number (2652851881800).

Almost surely, 2^{28297086739080} is an apocalyptic number.

28297086739080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28297086739080 is an abundant number, since it is smaller than the sum of its proper divisors (56594173478520).

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

28297086739080 is a wasteful number, since it uses less digits than its factorization.

28297086739080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235809056173 (or 235809056169 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 69.

The spelling of 28297086739080 in words is "twenty-eight trillion, two hundred ninety-seven billion, eighty-six million, seven hundred thirty-nine thousand, eighty".