7943650073 has 2 divisors, whose sum is σ = 7943650074. Its totient is φ = 7943650072.

The previous prime is 7943650069. The next prime is 7943650097. The reversal of 7943650073 is 3700563497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6868597129 + 1075052944 = 82877^2 + 32788^2 .

It is a cyclic number.

It is not a de Polignac number, because 7943650073 - 2² = 7943650069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7943650063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3971825036 + 3971825037.

It is an arithmetic number, because the mean of its divisors is an integer number (3971825037).

Almost surely, 2^7943650073 is an apocalyptic number.

It is an amenable number.

7943650073 is a deficient number, since it is larger than the sum of its proper divisors (1).

7943650073 is an equidigital number, since it uses as much as digits as its factorization.

7943650073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 44.

The square root of 7943650073 is about 89127.1567649277. The cubic root of 7943650073 is about 1995.2931040051.

The spelling of 7943650073 in words is "seven billion, nine hundred forty-three million, six hundred fifty thousand, seventy-three".