1689256632001 has 4 divisors (see below), whose sum is σ = 1717888100400. Its totient is φ = 1660625163604.

The previous prime is 1689256631999. The next prime is 1689256632017. The reversal of 1689256632001 is 1002366529861.

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 1689256632001 - 2¹ = 1689256631999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1689256632071) 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, 14315734111 + ... + 14315734228.

It is an arithmetic number, because the mean of its divisors is an integer number (429472025100).

Almost surely, 2^{1689256632001} is an apocalyptic number.

It is an amenable number.

1689256632001 is a deficient number, since it is larger than the sum of its proper divisors (28631468399).

1689256632001 is an equidigital number, since it uses as much as digits as its factorization.

1689256632001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28631468398.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 1689256632001 in words is "one trillion, six hundred eighty-nine billion, two hundred fifty-six million, six hundred thirty-two thousand, one".