1670988693371 has 2 divisors, whose sum is σ = 1670988693372. Its totient is φ = 1670988693370.

The previous prime is 1670988693343. The next prime is 1670988693373. The reversal of 1670988693371 is 1733968890761.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1670988693371 is a prime.

Together with 1670988693373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1670988693373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835494346685 + 835494346686.

It is an arithmetic number, because the mean of its divisors is an integer number (835494346686).

Almost surely, 2^{1670988693371} is an apocalyptic number.

1670988693371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670988693371 is an equidigital number, since it uses as much as digits as its factorization.

1670988693371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82301184, while the sum is 68.

The spelling of 1670988693371 in words is "one trillion, six hundred seventy billion, nine hundred eighty-eight million, six hundred ninety-three thousand, three hundred seventy-one".