28012292744 has 16 divisors (see below), whose sum is σ = 52612534800. Its totient is φ = 13982283472.

The previous prime is 28012292729. The next prime is 28012292753. The reversal of 28012292744 is 44729221082.

It is a super-4 number, since 4×28012292744⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2977874 + ... + 2987265.

It is an arithmetic number, because the mean of its divisors is an integer number (3288283425).

Almost surely, 2^28012292744 is an apocalyptic number.

It is an amenable number.

28012292744 is a deficient number, since it is larger than the sum of its proper divisors (24600242056).

28012292744 is a wasteful number, since it uses less digits than its factorization.

28012292744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5965732 (or 5965728 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 28012292744 in words is "twenty-eight billion, twelve million, two hundred ninety-two thousand, seven hundred forty-four".