1689374361601 has 4 divisors (see below), whose sum is σ = 1689447381952. Its totient is φ = 1689301341252.

The previous prime is 1689374361491. The next prime is 1689374361617. The reversal of 1689374361601 is 1061634739861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1689374361601 - 2²⁷ = 1689240143873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1689374361641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36475461 + ... + 36521746.

It is an arithmetic number, because the mean of its divisors is an integer number (422361845488).

Almost surely, 2^{1689374361601} is an apocalyptic number.

It is an amenable number.

1689374361601 is a deficient number, since it is larger than the sum of its proper divisors (73020351).

1689374361601 is an equidigital number, since it uses as much as digits as its factorization.

1689374361601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73020350.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 1689374361601 in words is "one trillion, six hundred eighty-nine billion, three hundred seventy-four million, three hundred sixty-one thousand, six hundred one".