28712294270 has 16 divisors (see below), whose sum is σ = 56380505328. Its totient is φ = 10440834240.

The previous prime is 28712294263. The next prime is 28712294321. The reversal of 28712294270 is 7249221782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130510319 + ... + 130510538.

It is an arithmetic number, because the mean of its divisors is an integer number (3523781583).

Almost surely, 2^28712294270 is an apocalyptic number.

28712294270 is a deficient number, since it is larger than the sum of its proper divisors (27668211058).

28712294270 is a wasteful number, since it uses less digits than its factorization.

28712294270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261020875.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 28712294270 in words is "twenty-eight billion, seven hundred twelve million, two hundred ninety-four thousand, two hundred seventy".