1667390327387 has 8 divisors (see below), whose sum is σ = 1687730412816. Its totient is φ = 1647056219392.

The previous prime is 1667390327377. The next prime is 1667390327389. The reversal of 1667390327387 is 7837230937661.

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

It is a cyclic number.

It is not a de Polignac number, because 1667390327387 - 2¹⁶ = 1667390261851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1667390327389) 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, 931778 + ... + 2050119.

It is an arithmetic number, because the mean of its divisors is an integer number (210966301602).

Almost surely, 2^{1667390327387} is an apocalyptic number.

1667390327387 is a deficient number, since it is larger than the sum of its proper divisors (20340085429).

1667390327387 is an equidigital number, since it uses as much as digits as its factorization.

1667390327387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988717.

The product of its (nonzero) digits is 48009024, while the sum is 62.

The spelling of 1667390327387 in words is "one trillion, six hundred sixty-seven billion, three hundred ninety million, three hundred twenty-seven thousand, three hundred eighty-seven".