2067011621729 has 4 divisors (see below), whose sum is σ = 2067145484976. Its totient is φ = 2066877758484.

The previous prime is 2067011621711. The next prime is 2067011621833. The reversal of 2067011621729 is 9271261107602.

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 2067011621729 - 2⁸ = 2067011621473 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2067011621729.

It is not an unprimeable number, because it can be changed into a prime (2067011624729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66908459 + ... + 66939344.

It is an arithmetic number, because the mean of its divisors is an integer number (516786371244).

Almost surely, 2^{2067011621729} is an apocalyptic number.

It is an amenable number.

2067011621729 is a deficient number, since it is larger than the sum of its proper divisors (133863247).

2067011621729 is a wasteful number, since it uses less digits than its factorization.

2067011621729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133863246.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 2067011621729 in words is "two trillion, sixty-seven billion, eleven million, six hundred twenty-one thousand, seven hundred twenty-nine".