1689106691752 has 16 divisors (see below), whose sum is σ = 3179117161440. Its totient is φ = 841342115376.

The previous prime is 1689106691693. The next prime is 1689106691791. The reversal of 1689106691752 is 2571966019861.

It is a super-2 number, since 2×1689106691752² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401401578 + ... + 401405785.

It is an arithmetic number, because the mean of its divisors is an integer number (198694822590).

Almost surely, 2^{1689106691752} is an apocalyptic number.

It is an amenable number.

1689106691752 is a deficient number, since it is larger than the sum of its proper divisors (1490010469688).

1689106691752 is a wasteful number, since it uses less digits than its factorization.

1689106691752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802807632 (or 802807628 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 61.

The spelling of 1689106691752 in words is "one trillion, six hundred eighty-nine billion, one hundred six million, six hundred ninety-one thousand, seven hundred fifty-two".