73682784037 has 2 divisors, whose sum is σ = 73682784038. Its totient is φ = 73682784036.

The previous prime is 73682783939. The next prime is 73682784041. The reversal of 73682784037 is 73048728637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68249472516 + 5433311521 = 261246^2 + 73711^2 .

It is an emirp because it is prime and its reverse (73048728637) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73682784037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73682784437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36841392018 + 36841392019.

It is an arithmetic number, because the mean of its divisors is an integer number (36841392019).

Almost surely, 2^73682784037 is an apocalyptic number.

It is an amenable number.

73682784037 is a deficient number, since it is larger than the sum of its proper divisors (1).

73682784037 is an equidigital number, since it uses as much as digits as its factorization.

73682784037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 73682784037 in words is "seventy-three billion, six hundred eighty-two million, seven hundred eighty-four thousand, thirty-seven".