1689832640343 has 8 divisors (see below), whose sum is σ = 2257625440000. Its totient is φ = 1124297467128.

The previous prime is 1689832640339. The next prime is 1689832640381. The reversal of 1689832640343 is 3430462389861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1689832640343 - 2² = 1689832640339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689832640393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564404863 + ... + 564407856.

It is an arithmetic number, because the mean of its divisors is an integer number (282203180000).

Almost surely, 2^{1689832640343} is an apocalyptic number.

1689832640343 is a deficient number, since it is larger than the sum of its proper divisors (567792799657).

1689832640343 is a wasteful number, since it uses less digits than its factorization.

1689832640343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128813221.

The product of its (nonzero) digits is 17915904, while the sum is 57.

The spelling of 1689832640343 in words is "one trillion, six hundred eighty-nine billion, eight hundred thirty-two million, six hundred forty thousand, three hundred forty-three".