28276983460 has 48 divisors (see below), whose sum is σ = 65408982912. Its totient is φ = 10182700800.

The previous prime is 28276983437. The next prime is 28276983487. The reversal of 28276983460 is 6438967282.

It is a super-2 number, since 2×28276983460² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601281 + ... + 646600.

It is an arithmetic number, because the mean of its divisors is an integer number (1362687144).

Almost surely, 2^28276983460 is an apocalyptic number.

28276983460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28276983460 is an abundant number, since it is smaller than the sum of its proper divisors (37131999452).

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

28276983460 is a wasteful number, since it uses less digits than its factorization.

28276983460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248004 (or 1248002 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 28276983460 in words is "twenty-eight billion, two hundred seventy-six million, nine hundred eighty-three thousand, four hundred sixty".