73649808919 has 2 divisors, whose sum is σ = 73649808920. Its totient is φ = 73649808918.

The previous prime is 73649808913. The next prime is 73649808931. The reversal of 73649808919 is 91980894637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73649808919 - 2²⁹ = 73112938007 is a prime.

It is a super-2 number, since 2×73649808919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73649808913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36824904459 + 36824904460.

It is an arithmetic number, because the mean of its divisors is an integer number (36824904460).

Almost surely, 2^73649808919 is an apocalyptic number.

73649808919 is a deficient number, since it is larger than the sum of its proper divisors (1).

73649808919 is an equidigital number, since it uses as much as digits as its factorization.

73649808919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 73649808919 in words is "seventy-three billion, six hundred forty-nine million, eight hundred eight thousand, nine hundred nineteen".