1687287680650 has 48 divisors (see below), whose sum is σ = 3687018578208. Its totient is φ = 566362296000.

The previous prime is 1687287680647. The next prime is 1687287680651. The reversal of 1687287680650 is 560867827861.

It is not an unprimeable number, because it can be changed into a prime (1687287680651) 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, 117984996 + ... + 117999295.

It is an arithmetic number, because the mean of its divisors is an integer number (76812887046).

Almost surely, 2^{1687287680650} is an apocalyptic number.

1687287680650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1687287680650 is an abundant number, since it is smaller than the sum of its proper divisors (1999730897558).

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

1687287680650 is a wasteful number, since it uses less digits than its factorization.

1687287680650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235984327 (or 235984322 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 64.

The spelling of 1687287680650 in words is "one trillion, six hundred eighty-seven billion, two hundred eighty-seven million, six hundred eighty thousand, six hundred fifty".