28293311996 has 48 divisors (see below), whose sum is σ = 54002192160. Its totient is φ = 12924334080.

The previous prime is 28293311993. The next prime is 28293312017. The reversal of 28293311996 is 69911339282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28293311993) 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, 273236 + ... + 362276.

It is an arithmetic number, because the mean of its divisors is an integer number (1125045670).

Almost surely, 2^28293311996 is an apocalyptic number.

It is an amenable number.

28293311996 is a deficient number, since it is larger than the sum of its proper divisors (25708880164).

28293311996 is a wasteful number, since it uses less digits than its factorization.

28293311996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89214 (or 89212 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 53.

The spelling of 28293311996 in words is "twenty-eight billion, two hundred ninety-three million, three hundred eleven thousand, nine hundred ninety-six".