28486689794 has 8 divisors (see below), whose sum is σ = 43723756560. Its totient is φ = 13912104276.

The previous prime is 28486689769. The next prime is 28486689799. The reversal of 28486689794 is 49798668482.

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

It is a super-2 number, since 2×28486689794² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28486689799) 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 3 ways as a sum of consecutive naturals, for example, 165620204 + ... + 165620375.

It is an arithmetic number, because the mean of its divisors is an integer number (5465469570).

Almost surely, 2^28486689794 is an apocalyptic number.

28486689794 is a deficient number, since it is larger than the sum of its proper divisors (15237066766).

28486689794 is a wasteful number, since it uses less digits than its factorization.

28486689794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331240624.

The product of its digits is 334430208, while the sum is 71.

The spelling of 28486689794 in words is "twenty-eight billion, four hundred eighty-six million, six hundred eighty-nine thousand, seven hundred ninety-four".