28265620970 has 8 divisors (see below), whose sum is σ = 50878117764. Its totient is φ = 11306248384.

The previous prime is 28265620967. The next prime is 28265621003. The reversal of 28265620970 is 7902656282.

It can be written as a sum of positive squares in 2 ways, for example, as 26643706441 + 1621914529 = 163229^2 + 40273^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1413281039 + ... + 1413281058.

Almost surely, 2^28265620970 is an apocalyptic number.

28265620970 is a deficient number, since it is larger than the sum of its proper divisors (22612496794).

28265620970 is a wasteful number, since it uses less digits than its factorization.

28265620970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826562104.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 28265620970 in words is "twenty-eight billion, two hundred sixty-five million, six hundred twenty thousand, nine hundred seventy".