28643747215160 has 64 divisors (see below), whose sum is σ = 80351290897920. Its totient is φ = 8927921208960.

The previous prime is 28643747215147. The next prime is 28643747215207. The reversal of 28643747215160 is 6151274734682.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a junction number, because it is equal to n+sod(n) for n = 28643747215096 and 28643747215105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4649955884 + ... + 4649962043.

It is an arithmetic number, because the mean of its divisors is an integer number (1255488920280).

Almost surely, 2^{28643747215160} is an apocalyptic number.

28643747215160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28643747215160 is an abundant number, since it is smaller than the sum of its proper divisors (51707543682760).

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

28643747215160 is a wasteful number, since it uses less digits than its factorization.

28643747215160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9299917956 (or 9299917952 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 28643747215160 in words is "twenty-eight trillion, six hundred forty-three billion, seven hundred forty-seven million, two hundred fifteen thousand, one hundred sixty".