28435719646 has 8 divisors (see below), whose sum is σ = 42675447744. Its totient is φ = 14210570400.

The previous prime is 28435719643. The next prime is 28435719659. The reversal of 28435719646 is 64691753482.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28435719643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3639835 + ... + 3647638.

It is an arithmetic number, because the mean of its divisors is an integer number (5334430968).

Almost surely, 2^28435719646 is an apocalyptic number.

28435719646 is a deficient number, since it is larger than the sum of its proper divisors (14239728098).

28435719646 is a wasteful number, since it uses less digits than its factorization.

28435719646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7289426.

The product of its digits is 8709120, while the sum is 55.

The spelling of 28435719646 in words is "twenty-eight billion, four hundred thirty-five million, seven hundred nineteen thousand, six hundred forty-six".