28785694453 has 8 divisors (see below), whose sum is σ = 28997619840. Its totient is φ = 28573838400.

The previous prime is 28785694451. The next prime is 28785694471. The reversal of 28785694453 is 35449658782.

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

It is a cyclic number.

It is not a de Polignac number, because 28785694453 - 2¹ = 28785694451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28785694391 and 28785694400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28785694451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060653 + ... + 1087453.

It is an arithmetic number, because the mean of its divisors is an integer number (3624702480).

Almost surely, 2^28785694453 is an apocalyptic number.

It is an amenable number.

28785694453 is a deficient number, since it is larger than the sum of its proper divisors (211925387).

28785694453 is a wasteful number, since it uses less digits than its factorization.

28785694453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34667.

The product of its digits is 58060800, while the sum is 61.

The spelling of 28785694453 in words is "twenty-eight billion, seven hundred eighty-five million, six hundred ninety-four thousand, four hundred fifty-three".