7161285583421 has 2 divisors, whose sum is σ = 7161285583422. Its totient is φ = 7161285583420.

The previous prime is 7161285583327. The next prime is 7161285583489. The reversal of 7161285583421 is 1243855821617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5527605379396 + 1633680204025 = 2351086^2 + 1278155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7161285583421 is a prime.

It is a super-2 number, since 2×7161285583421² (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 (7161285583021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3580642791710 + 3580642791711.

It is an arithmetic number, because the mean of its divisors is an integer number (3580642791711).

Almost surely, 2^{7161285583421} is an apocalyptic number.

It is an amenable number.

7161285583421 is a deficient number, since it is larger than the sum of its proper divisors (1).

7161285583421 is an equidigital number, since it uses as much as digits as its factorization.

7161285583421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 53.

The spelling of 7161285583421 in words is "seven trillion, one hundred sixty-one billion, two hundred eighty-five million, five hundred eighty-three thousand, four hundred twenty-one".