28831701550 has 24 divisors (see below), whose sum is σ = 53649597456. Its totient is φ = 11527813440.

The previous prime is 28831701511. The next prime is 28831701637. The reversal of 28831701550 is 5510713882.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 834 + ... + 240133.

It is an arithmetic number, because the mean of its divisors is an integer number (2235399894).

Almost surely, 2^28831701550 is an apocalyptic number.

28831701550 is a deficient number, since it is larger than the sum of its proper divisors (24817895906).

28831701550 is a wasteful number, since it uses less digits than its factorization.

28831701550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243372 (or 243367 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 28831701550 in words is "twenty-eight billion, eight hundred thirty-one million, seven hundred one thousand, five hundred fifty".