187828159550 has 12 divisors (see below), whose sum is σ = 349360376856. Its totient is φ = 75131263800.

The previous prime is 187828159513. The next prime is 187828159591. The reversal of 187828159550 is 55951828781.

It is a self number, because there is not a number n which added to its sum of digits gives 187828159550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1878281546 + ... + 1878281645.

It is an arithmetic number, because the mean of its divisors is an integer number (29113364738).

Almost surely, 2^187828159550 is an apocalyptic number.

187828159550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

187828159550 is a deficient number, since it is larger than the sum of its proper divisors (161532217306).

187828159550 is a wasteful number, since it uses less digits than its factorization.

187828159550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756563203 (or 3756563198 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 59.

The spelling of 187828159550 in words is "one hundred eighty-seven billion, eight hundred twenty-eight million, one hundred fifty-nine thousand, five hundred fifty".