73187711983 has 2 divisors, whose sum is σ = 73187711984. Its totient is φ = 73187711982.

The previous prime is 73187711963. The next prime is 73187712001. The reversal of 73187711983 is 38911778137.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73187711983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73187711963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36593855991 + 36593855992.

It is an arithmetic number, because the mean of its divisors is an integer number (36593855992).

Almost surely, 2^73187711983 is an apocalyptic number.

73187711983 is a deficient number, since it is larger than the sum of its proper divisors (1).

73187711983 is an equidigital number, since it uses as much as digits as its factorization.

73187711983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 55.

The spelling of 73187711983 in words is "seventy-three billion, one hundred eighty-seven million, seven hundred eleven thousand, nine hundred eighty-three".