28286740275 has 24 divisors (see below), whose sum is σ = 46773100080. Its totient is φ = 15084426240.

The previous prime is 28286740271. The next prime is 28286740277. The reversal of 28286740275 is 57204768282.

It is not a de Polignac number, because 28286740275 - 2² = 28286740271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28286740271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 787099 + ... + 822251.

It is an arithmetic number, because the mean of its divisors is an integer number (1948879170).

Almost surely, 2^28286740275 is an apocalyptic number.

28286740275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28286740275 is a deficient number, since it is larger than the sum of its proper divisors (18486359805).

28286740275 is a wasteful number, since it uses less digits than its factorization.

28286740275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45895 (or 45890 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 51.

The spelling of 28286740275 in words is "twenty-eight billion, two hundred eighty-six million, seven hundred forty thousand, two hundred seventy-five".