73194959869 has 2 divisors, whose sum is σ = 73194959870. Its totient is φ = 73194959868.

The previous prime is 73194959863. The next prime is 73194959899. The reversal of 73194959869 is 96895949137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37686456900 + 35508502969 = 194130^2 + 188437^2 .

It is a cyclic number.

It is not a de Polignac number, because 73194959869 - 2²⁵ = 73161405437 is a prime.

It is a super-2 number, since 2×73194959869² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73194959798 and 73194959807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73194959863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36597479934 + 36597479935.

It is an arithmetic number, because the mean of its divisors is an integer number (36597479935).

Almost surely, 2^73194959869 is an apocalyptic number.

It is an amenable number.

73194959869 is a deficient number, since it is larger than the sum of its proper divisors (1).

73194959869 is an equidigital number, since it uses as much as digits as its factorization.

73194959869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132269760, while the sum is 70.

The spelling of 73194959869 in words is "seventy-three billion, one hundred ninety-four million, nine hundred fifty-nine thousand, eight hundred sixty-nine".