28692298920 has 32 divisors (see below), whose sum is σ = 86076897120. Its totient is φ = 7651279680.

The previous prime is 28692298861. The next prime is 28692298991. The reversal of 28692298920 is 2989229682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119551126 + ... + 119551365.

It is an arithmetic number, because the mean of its divisors is an integer number (2689903035).

Almost surely, 2^28692298920 is an apocalyptic number.

28692298920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28692298920 is an abundant number, since it is smaller than the sum of its proper divisors (57384598200).

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

28692298920 is a wasteful number, since it uses less digits than its factorization.

28692298920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239102505 (or 239102501 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 28692298920 in words is "twenty-eight billion, six hundred ninety-two million, two hundred ninety-eight thousand, nine hundred twenty".