28248956472 has 64 divisors (see below), whose sum is σ = 78192547200. Its totient is φ = 8432519040.

The previous prime is 28248956453. The next prime is 28248956479. The reversal of 28248956472 is 27465984282.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28248956479) 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, 780847 + ... + 816222.

It is an arithmetic number, because the mean of its divisors is an integer number (1221758550).

Almost surely, 2^28248956472 is an apocalyptic number.

28248956472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28248956472 is an abundant number, since it is smaller than the sum of its proper divisors (49943590728).

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

28248956472 is a wasteful number, since it uses less digits than its factorization.

28248956472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597156 (or 1597152 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The spelling of 28248956472 in words is "twenty-eight billion, two hundred forty-eight million, nine hundred fifty-six thousand, four hundred seventy-two".