1067423163421 has 4 divisors (see below), whose sum is σ = 1067564383200. Its totient is φ = 1067281943644.

The previous prime is 1067423163409. The next prime is 1067423163461. The reversal of 1067423163421 is 1243613247601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1067423163421 - 2¹³ = 1067423155229 is a prime.

It is a super-2 number, since 2×1067423163421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1067423163461) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 70598551 + ... + 70613668.

It is an arithmetic number, because the mean of its divisors is an integer number (266891095800).

Almost surely, 2^{1067423163421} is an apocalyptic number.

It is an amenable number.

1067423163421 is a deficient number, since it is larger than the sum of its proper divisors (141219779).

1067423163421 is an equidigital number, since it uses as much as digits as its factorization.

1067423163421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141219778.

The product of its (nonzero) digits is 145152, while the sum is 40.

The spelling of 1067423163421 in words is "one trillion, sixty-seven billion, four hundred twenty-three million, one hundred sixty-three thousand, four hundred twenty-one".