7373021641 has 2 divisors, whose sum is σ = 7373021642. Its totient is φ = 7373021640.

The previous prime is 7373021639. The next prime is 7373021651. The reversal of 7373021641 is 1461203737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6131516416 + 1241505225 = 78304^2 + 35235^2 .

It is a cyclic number.

It is not a de Polignac number, because 7373021641 - 2¹ = 7373021639 is a prime.

It is a super-2 number, since 2×7373021641² (a number of 21 digits) contains 22 as substring.

Together with 7373021639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7373021597 and 7373021606.

It is not a weakly prime, because it can be changed into another prime (7373021651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3686510820 + 3686510821.

It is an arithmetic number, because the mean of its divisors is an integer number (3686510821).

Almost surely, 2^7373021641 is an apocalyptic number.

It is an amenable number.

7373021641 is a deficient number, since it is larger than the sum of its proper divisors (1).

7373021641 is an equidigital number, since it uses as much as digits as its factorization.

7373021641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 7373021641 is about 85866.3009626012. The cubic root of 7373021641 is about 1946.3241416481.

The spelling of 7373021641 in words is "seven billion, three hundred seventy-three million, twenty-one thousand, six hundred forty-one".