28269629472 has 96 divisors (see below), whose sum is σ = 84849206400. Its totient is φ = 8073197568.

The previous prime is 28269629471. The next prime is 28269629473. The reversal of 28269629472 is 27492696282.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28269629471) and next prime (28269629473).

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28269629471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1596604 + ... + 1614212.

It is an arithmetic number, because the mean of its divisors is an integer number (883845900).

Almost surely, 2^28269629472 is an apocalyptic number.

It is an amenable number.

28269629472 is an abundant number, since it is smaller than the sum of its proper divisors (56579576928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28269629472 is a wasteful number, since it uses less digits than its factorization.

28269629472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20018 (or 20010 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 57.

The spelling of 28269629472 in words is "twenty-eight billion, two hundred sixty-nine million, six hundred twenty-nine thousand, four hundred seventy-two".