28247234464 has 48 divisors (see below), whose sum is σ = 57093996960. Its totient is φ = 13751246080.

The previous prime is 28247234461. The next prime is 28247234497. The reversal of 28247234464 is 46443274282.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28247234461) 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 7 ways as a sum of consecutive naturals, for example, 158607 + ... + 285745.

It is an arithmetic number, because the mean of its divisors is an integer number (1189458270).

Almost surely, 2^28247234464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28247234464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28546998480).

28247234464 is an abundant number, since it is smaller than the sum of its proper divisors (28846762496).

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

28247234464 is a wasteful number, since it uses less digits than its factorization.

28247234464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127333 (or 127325 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 46.

The spelling of 28247234464 in words is "twenty-eight billion, two hundred forty-seven million, two hundred thirty-four thousand, four hundred sixty-four".