73736710213 has 2 divisors, whose sum is σ = 73736710214. Its totient is φ = 73736710212.

The previous prime is 73736710169. The next prime is 73736710219. The reversal of 73736710213 is 31201763737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71977914369 + 1758795844 = 268287^2 + 41938^2 .

It is a cyclic number.

It is not a de Polignac number, because 73736710213 - 2²¹ = 73734613061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73736710219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36868355106 + 36868355107.

It is an arithmetic number, because the mean of its divisors is an integer number (36868355107).

Almost surely, 2^73736710213 is an apocalyptic number.

It is an amenable number.

73736710213 is a deficient number, since it is larger than the sum of its proper divisors (1).

73736710213 is an equidigital number, since it uses as much as digits as its factorization.

73736710213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132, while the sum is 40.

The spelling of 73736710213 in words is "seventy-three billion, seven hundred thirty-six million, seven hundred ten thousand, two hundred thirteen".