28514647296 has 72 divisors (see below), whose sum is σ = 84322848960. Its totient is φ = 9504880128.

The previous prime is 28514647283. The next prime is 28514647303. The reversal of 28514647296 is 69274641582.

28514647296 is a `hidden beast` number, since 2 + 85 + 1 + 4 + 6 + 472 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×28514647296² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055780 + ... + 2069603.

It is an arithmetic number, because the mean of its divisors is an integer number (1171150680).

Almost surely, 2^28514647296 is an apocalyptic number.

It is an amenable number.

28514647296 is an abundant number, since it is smaller than the sum of its proper divisors (55808201664).

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

28514647296 is an equidigital number, since it uses as much as digits as its factorization.

28514647296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4125408 (or 4125388 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 28514647296 in words is "twenty-eight billion, five hundred fourteen million, six hundred forty-seven thousand, two hundred ninety-six".