73148627609 has 2 divisors, whose sum is σ = 73148627610. Its totient is φ = 73148627608.

The previous prime is 73148627597. The next prime is 73148627683. The reversal of 73148627609 is 90672684137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65227627609 + 7921000000 = 255397^2 + 89000^2 .

It is a cyclic number.

It is not a de Polignac number, because 73148627609 - 2¹⁶ = 73148562073 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 (73148627009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36574313804 + 36574313805.

It is an arithmetic number, because the mean of its divisors is an integer number (36574313805).

Almost surely, 2^73148627609 is an apocalyptic number.

It is an amenable number.

73148627609 is a deficient number, since it is larger than the sum of its proper divisors (1).

73148627609 is an equidigital number, since it uses as much as digits as its factorization.

73148627609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 73148627609 in words is "seventy-three billion, one hundred forty-eight million, six hundred twenty-seven thousand, six hundred nine".