7063621729 has 2 divisors, whose sum is σ = 7063621730. Its totient is φ = 7063621728.

The previous prime is 7063621673. The next prime is 7063621769. The reversal of 7063621729 is 9271263607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6978096225 + 85525504 = 83535^2 + 9248^2 .

It is a cyclic number.

It is not a de Polignac number, because 7063621729 - 2¹⁹ = 7063097441 is a prime.

It is not a weakly prime, because it can be changed into another prime (7063621769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3531810864 + 3531810865.

It is an arithmetic number, because the mean of its divisors is an integer number (3531810865).

Almost surely, 2^7063621729 is an apocalyptic number.

It is an amenable number.

7063621729 is a deficient number, since it is larger than the sum of its proper divisors (1).

7063621729 is an equidigital number, since it uses as much as digits as its factorization.

7063621729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 7063621729 is about 84045.3551899211. The cubic root of 7063621729 is about 1918.7091410922.

The spelling of 7063621729 in words is "seven billion, sixty-three million, six hundred twenty-one thousand, seven hundred twenty-nine".