28767576738 has 32 divisors (see below), whose sum is σ = 61659305856. Its totient is φ = 8924370048.

The previous prime is 28767576709. The next prime is 28767576769. The reversal of 28767576738 is 83767576782.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 2811931 + ... + 2822142.

It is an arithmetic number, because the mean of its divisors is an integer number (1926853308).

Almost surely, 2^28767576738 is an apocalyptic number.

28767576738 is an abundant number, since it is smaller than the sum of its proper divisors (32891729118).

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

28767576738 is a wasteful number, since it uses less digits than its factorization.

28767576738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634138.

The product of its digits is 165957120, while the sum is 66.

The spelling of 28767576738 in words is "twenty-eight billion, seven hundred sixty-seven million, five hundred seventy-six thousand, seven hundred thirty-eight".