28739064676 has 27 divisors (see below), whose sum is σ = 58509356409. Its totient is φ = 12315724848.

The previous prime is 28739064661. The next prime is 28739064709. The reversal of 28739064676 is 67646093782.

The square root of 28739064676 is 169526.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 28653687076 + 85377600 = 169274^2 + 9240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28739064676.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 2367310 + ... + 2379418.

Almost surely, 2^28739064676 is an apocalyptic number.

28739064676 is the 169526-th square number.

It is an amenable number.

28739064676 is an abundant number, since it is smaller than the sum of its proper divisors (29770291733).

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

28739064676 is an frugal number, since it uses more digits than its factorization.

28739064676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24236 (or 12118 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 58.

The spelling of 28739064676 in words is "twenty-eight billion, seven hundred thirty-nine million, sixty-four thousand, six hundred seventy-six".