73653038197 has 2 divisors, whose sum is σ = 73653038198. Its totient is φ = 73653038196.

The previous prime is 73653038171. The next prime is 73653038273. The reversal of 73653038197 is 79183035637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44981743921 + 28671294276 = 212089^2 + 169326^2 .

It is an emirp because it is prime and its reverse (79183035637) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73653038197 is a prime.

It is a super-3 number, since 3×73653038197³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73653038597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36826519098 + 36826519099.

It is an arithmetic number, because the mean of its divisors is an integer number (36826519099).

Almost surely, 2^73653038197 is an apocalyptic number.

It is an amenable number.

73653038197 is a deficient number, since it is larger than the sum of its proper divisors (1).

73653038197 is an equidigital number, since it uses as much as digits as its factorization.

73653038197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 73653038197 in words is "seventy-three billion, six hundred fifty-three million, thirty-eight thousand, one hundred ninety-seven".