1687389087050 has 48 divisors (see below), whose sum is σ = 3312447885600. Its totient is φ = 637744363200.

The previous prime is 1687389087019. The next prime is 1687389087053. The reversal of 1687389087050 is 507809837861.

It is not an unprimeable number, because it can be changed into a prime (1687389087053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1983221 + ... + 2703320.

It is an arithmetic number, because the mean of its divisors is an integer number (69009330950).

Almost surely, 2^{1687389087050} is an apocalyptic number.

1687389087050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1687389087050 is a deficient number, since it is larger than the sum of its proper divisors (1625058798550).

1687389087050 is a wasteful number, since it uses less digits than its factorization.

1687389087050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686951 (or 4686946 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 62.

The spelling of 1687389087050 in words is "one trillion, six hundred eighty-seven billion, three hundred eighty-nine million, eighty-seven thousand, fifty".