28479633635 has 8 divisors (see below), whose sum is σ = 34176596976. Its totient is φ = 22783015840.

The previous prime is 28479633617. The next prime is 28479633649. The reversal of 28479633635 is 53633697482.

It is a happy number.

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

It is not a de Polignac number, because 28479633635 - 2¹⁶ = 28479568099 is a prime.

It is a super-2 number, since 2×28479633635² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157580 + ... + 285990.

It is an arithmetic number, because the mean of its divisors is an integer number (4272074622).

Almost surely, 2^28479633635 is an apocalyptic number.

28479633635 is a deficient number, since it is larger than the sum of its proper divisors (5696963341).

28479633635 is a wasteful number, since it uses less digits than its factorization.

28479633635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172773.

The product of its digits is 19595520, while the sum is 56.

The spelling of 28479633635 in words is "twenty-eight billion, four hundred seventy-nine million, six hundred thirty-three thousand, six hundred thirty-five".