7057621793 has 2 divisors, whose sum is σ = 7057621794. Its totient is φ = 7057621792.

The previous prime is 7057621729. The next prime is 7057621799. The reversal of 7057621793 is 3971267507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7057344064 + 277729 = 84008^2 + 527^2 .

It is a cyclic number.

It is not a de Polignac number, because 7057621793 - 2⁶ = 7057621729 is a prime.

It is not a weakly prime, because it can be changed into another prime (7057621799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3528810896 + 3528810897.

It is an arithmetic number, because the mean of its divisors is an integer number (3528810897).

Almost surely, 2^7057621793 is an apocalyptic number.

It is an amenable number.

7057621793 is a deficient number, since it is larger than the sum of its proper divisors (1).

7057621793 is an equidigital number, since it uses as much as digits as its factorization.

7057621793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 555660, while the sum is 47.

The square root of 7057621793 is about 84009.6529751195. The cubic root of 7057621793 is about 1918.1657280221.

The spelling of 7057621793 in words is "seven billion, fifty-seven million, six hundred twenty-one thousand, seven hundred ninety-three".