28311009479 has 8 divisors (see below), whose sum is σ = 28580210400. Its totient is φ = 28042884000.

The previous prime is 28311009443. The next prime is 28311009481. The reversal of 28311009479 is 97490011382.

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 28311009479 - 2¹² = 28311005383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28311005479) 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, 215912 + ... + 321309.

It is an arithmetic number, because the mean of its divisors is an integer number (3572526300).

Almost surely, 2^28311009479 is an apocalyptic number.

28311009479 is a deficient number, since it is larger than the sum of its proper divisors (269200921).

28311009479 is a wasteful number, since it uses less digits than its factorization.

28311009479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537721.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 28311009479 in words is "twenty-eight billion, three hundred eleven million, nine thousand, four hundred seventy-nine".