1068187597621 has 4 divisors (see below), whose sum is σ = 1114630536672. Its totient is φ = 1021744658572.

The previous prime is 1068187597579. The next prime is 1068187597637. The reversal of 1068187597621 is 1267957818601.

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 1068187597621 - 2¹³ = 1068187589429 is a prime.

It is a super-3 number, since 3×1068187597621³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1068187597621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068187597651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23221469491 + ... + 23221469536.

It is an arithmetic number, because the mean of its divisors is an integer number (278657634168).

Almost surely, 2^{1068187597621} is an apocalyptic number.

It is an amenable number.

1068187597621 is a deficient number, since it is larger than the sum of its proper divisors (46442939051).

1068187597621 is an equidigital number, since it uses as much as digits as its factorization.

1068187597621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46442939050.

The product of its (nonzero) digits is 10160640, while the sum is 61.

The spelling of 1068187597621 in words is "one trillion, sixty-eight billion, one hundred eighty-seven million, five hundred ninety-seven thousand, six hundred twenty-one".