28267333378 has 16 divisors (see below), whose sum is σ = 43407730080. Its totient is φ = 13798403136.

The previous prime is 28267333307. The next prime is 28267333379. The reversal of 28267333378 is 87333376282.

It is not an unprimeable number, because it can be changed into a prime (28267333379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105901 + ... + 260287.

It is an arithmetic number, because the mean of its divisors is an integer number (2712983130).

Almost surely, 2^28267333378 is an apocalyptic number.

28267333378 is a deficient number, since it is larger than the sum of its proper divisors (15140396702).

28267333378 is a wasteful number, since it uses less digits than its factorization.

28267333378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156561.

The product of its digits is 6096384, while the sum is 52.

The spelling of 28267333378 in words is "twenty-eight billion, two hundred sixty-seven million, three hundred thirty-three thousand, three hundred seventy-eight".