10613444431621 has 2 divisors, whose sum is σ = 10613444431622. Its totient is φ = 10613444431620.

The previous prime is 10613444431477. The next prime is 10613444431631. The reversal of 10613444431621 is 12613444431601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10613097950625 + 346480996 = 3257775^2 + 18614^2 .

It is a cyclic number.

It is not a de Polignac number, because 10613444431621 - 2²³ = 10613436043013 is a prime.

It is a super-2 number, since 2×10613444431621² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10613444431631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5306722215810 + 5306722215811.

It is an arithmetic number, because the mean of its divisors is an integer number (5306722215811).

Almost surely, 2^{10613444431621} is an apocalyptic number.

It is an amenable number.

10613444431621 is a deficient number, since it is larger than the sum of its proper divisors (1).

10613444431621 is an equidigital number, since it uses as much as digits as its factorization.

10613444431621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 10613444431621 in words is "ten trillion, six hundred thirteen billion, four hundred forty-four million, four hundred thirty-one thousand, six hundred twenty-one".