28247382357 has 8 divisors (see below), whose sum is σ = 39300705984. Its totient is φ = 18012823488.

The previous prime is 28247382347. The next prime is 28247382377. The reversal of 28247382357 is 75328374282.

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

It is not a de Polignac number, because 28247382357 - 2⁴ = 28247382341 is a prime.

It is a super-2 number, since 2×28247382357² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28247382337) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 204691108 + ... + 204691245.

It is an arithmetic number, because the mean of its divisors is an integer number (4912588248).

Almost surely, 2^28247382357 is an apocalyptic number.

It is an amenable number.

28247382357 is a deficient number, since it is larger than the sum of its proper divisors (11053323627).

28247382357 is a wasteful number, since it uses less digits than its factorization.

28247382357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409382379.

The product of its digits is 4515840, while the sum is 51.

The spelling of 28247382357 in words is "twenty-eight billion, two hundred forty-seven million, three hundred eighty-two thousand, three hundred fifty-seven".