73886746147609 has 2 divisors, whose sum is σ = 73886746147610. Its totient is φ = 73886746147608.

The previous prime is 73886746147547. The next prime is 73886746147619. The reversal of 73886746147609 is 90674164768837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73886746147600 + 9 = 8595740^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 73886746147609 - 2²⁹ = 73886209276697 is a prime.

It is not a weakly prime, because it can be changed into another prime (73886746147619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36943373073804 + 36943373073805.

It is an arithmetic number, because the mean of its divisors is an integer number (36943373073805).

Almost surely, 2^{73886746147609} is an apocalyptic number.

It is an amenable number.

73886746147609 is a deficient number, since it is larger than the sum of its proper divisors (1).

73886746147609 is an equidigital number, since it uses as much as digits as its factorization.

73886746147609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048385024, while the sum is 76.

The spelling of 73886746147609 in words is "seventy-three trillion, eight hundred eighty-six billion, seven hundred forty-six million, one hundred forty-seven thousand, six hundred nine".