1421168168791 has 8 divisors (see below), whose sum is σ = 1628163326240. Its totient is φ = 1215165794688.

The previous prime is 1421168168743. The next prime is 1421168168801. The reversal of 1421168168791 is 1978618611241.

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 1421168168791 - 2¹⁵ = 1421168136023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421168168491) 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, 248192766 + ... + 248198491.

It is an arithmetic number, because the mean of its divisors is an integer number (203520415780).

Almost surely, 2^{1421168168791} is an apocalyptic number.

1421168168791 is a deficient number, since it is larger than the sum of its proper divisors (206995157449).

1421168168791 is an equidigital number, since it uses as much as digits as its factorization.

1421168168791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496391673.

The product of its digits is 1161216, while the sum is 55.

The spelling of 1421168168791 in words is "one trillion, four hundred twenty-one billion, one hundred sixty-eight million, one hundred sixty-eight thousand, seven hundred ninety-one".