1671993354358 has 16 divisors (see below), whose sum is σ = 2533608681840. Its totient is φ = 827477150976.

The previous prime is 1671993354329. The next prime is 1671993354379. The reversal of 1671993354358 is 8534533991761.

It is a self number, because there is not a number n which added to its sum of digits gives 1671993354358.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4838535 + ... + 5172562.

It is an arithmetic number, because the mean of its divisors is an integer number (158350542615).

Almost surely, 2^{1671993354358} is an apocalyptic number.

1671993354358 is a deficient number, since it is larger than the sum of its proper divisors (861615327482).

1671993354358 is a wasteful number, since it uses less digits than its factorization.

1671993354358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011951.

The product of its digits is 73483200, while the sum is 64.

The spelling of 1671993354358 in words is "one trillion, six hundred seventy-one billion, nine hundred ninety-three million, three hundred fifty-four thousand, three hundred fifty-eight".