10621843372801 has 4 divisors (see below), whose sum is σ = 10767348076612. Its totient is φ = 10476338668992.

The previous prime is 10621843372739. The next prime is 10621843372841. The reversal of 10621843372801 is 10827334812601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3801911122801 + 6819932250000 = 1949849^2 + 2611500^2 .

It is a cyclic number.

It is not a de Polignac number, because 10621843372801 - 2²¹ = 10621841275649 is a prime.

It is a super-2 number, since 2×10621843372801² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10621843372841) 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, 72752351796 + ... + 72752351941.

It is an arithmetic number, because the mean of its divisors is an integer number (2691837019153).

Almost surely, 2^{10621843372801} is an apocalyptic number.

It is an amenable number.

10621843372801 is a deficient number, since it is larger than the sum of its proper divisors (145504703811).

10621843372801 is an equidigital number, since it uses as much as digits as its factorization.

10621843372801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145504703810.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 10621843372801 in words is "ten trillion, six hundred twenty-one billion, eight hundred forty-three million, three hundred seventy-two thousand, eight hundred one".