1394935696991 has 2 divisors, whose sum is σ = 1394935696992. Its totient is φ = 1394935696990.

The previous prime is 1394935696963. The next prime is 1394935697003. The reversal of 1394935696991 is 1996965394931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1394935696991 - 2⁶ = 1394935696927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1394935696961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697467848495 + 697467848496.

It is an arithmetic number, because the mean of its divisors is an integer number (697467848496).

Almost surely, 2^{1394935696991} is an apocalyptic number.

1394935696991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394935696991 is an equidigital number, since it uses as much as digits as its factorization.

1394935696991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 382637520, while the sum is 74.

The spelling of 1394935696991 in words is "one trillion, three hundred ninety-four billion, nine hundred thirty-five million, six hundred ninety-six thousand, nine hundred ninety-one".