73613710987 has 2 divisors, whose sum is σ = 73613710988. Its totient is φ = 73613710986.

The previous prime is 73613710957. The next prime is 73613710997. The reversal of 73613710987 is 78901731637.

It is a strong prime.

It is an emirp because it is prime and its reverse (78901731637) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73613710987 is a prime.

It is a super-3 number, since 3×73613710987³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (73613710957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36806855493 + 36806855494.

It is an arithmetic number, because the mean of its divisors is an integer number (36806855494).

Almost surely, 2^73613710987 is an apocalyptic number.

73613710987 is a deficient number, since it is larger than the sum of its proper divisors (1).

73613710987 is an equidigital number, since it uses as much as digits as its factorization.

73613710987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 52.

The spelling of 73613710987 in words is "seventy-three billion, six hundred thirteen million, seven hundred ten thousand, nine hundred eighty-seven".