28262826247 has 8 divisors (see below), whose sum is σ = 30621284496. Its totient is φ = 25981694592.

The previous prime is 28262826239. The next prime is 28262826283. The reversal of 28262826247 is 74262826282.

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

It is not a de Polignac number, because 28262826247 - 2³ = 28262826239 is a prime.

It is a super-2 number, since 2×28262826247² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28262826247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28262826047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19330888 + ... + 19332349.

It is an arithmetic number, because the mean of its divisors is an integer number (3827660562).

Almost surely, 2^28262826247 is an apocalyptic number.

28262826247 is a deficient number, since it is larger than the sum of its proper divisors (2358458249).

28262826247 is a wasteful number, since it uses less digits than its factorization.

28262826247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38663297.

The product of its digits is 2064384, while the sum is 49.

The spelling of 28262826247 in words is "twenty-eight billion, two hundred sixty-two million, eight hundred twenty-six thousand, two hundred forty-seven".