1687931380414 has 16 divisors (see below), whose sum is σ = 2684328595200. Its totient is φ = 793794308184.

The previous prime is 1687931380391. The next prime is 1687931380427. The reversal of 1687931380414 is 4140831397861.

It is a super-2 number, since 2×1687931380414² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 159776182 + ... + 159786745.

It is an arithmetic number, because the mean of its divisors is an integer number (167770537200).

Almost surely, 2^{1687931380414} is an apocalyptic number.

1687931380414 is a deficient number, since it is larger than the sum of its proper divisors (996397214786).

1687931380414 is a wasteful number, since it uses less digits than its factorization.

1687931380414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319563087.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 1687931380414 in words is "one trillion, six hundred eighty-seven billion, nine hundred thirty-one million, three hundred eighty thousand, four hundred fourteen".