28967847738 has 32 divisors (see below), whose sum is σ = 58241465856. Its totient is φ = 9605107248.

The previous prime is 28967847737. The next prime is 28967847749. The reversal of 28967847738 is 83774876982.

It is a super-3 number, since 3×28967847738³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28967847737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 982195 + ... + 1011257.

It is an arithmetic number, because the mean of its divisors is an integer number (1820045808).

Almost surely, 2^28967847738 is an apocalyptic number.

28967847738 is an abundant number, since it is smaller than the sum of its proper divisors (29273618118).

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

28967847738 is a wasteful number, since it uses less digits than its factorization.

28967847738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29938.

The product of its digits is 227598336, while the sum is 69.

The spelling of 28967847738 in words is "twenty-eight billion, nine hundred sixty-seven million, eight hundred forty-seven thousand, seven hundred thirty-eight".