73015800709 has 2 divisors, whose sum is σ = 73015800710. Its totient is φ = 73015800708.

The previous prime is 73015800659. The next prime is 73015800731. The reversal of 73015800709 is 90700851037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57365040100 + 15650760609 = 239510^2 + 125103^2 .

It is a cyclic number.

It is not a de Polignac number, because 73015800709 - 2⁹ = 73015800197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73015800799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36507900354 + 36507900355.

It is an arithmetic number, because the mean of its divisors is an integer number (36507900355).

Almost surely, 2^73015800709 is an apocalyptic number.

It is an amenable number.

73015800709 is a deficient number, since it is larger than the sum of its proper divisors (1).

73015800709 is an equidigital number, since it uses as much as digits as its factorization.

73015800709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The spelling of 73015800709 in words is "seventy-three billion, fifteen million, eight hundred thousand, seven hundred nine".