73593981749 has 2 divisors, whose sum is σ = 73593981750. Its totient is φ = 73593981748.

The previous prime is 73593981697. The next prime is 73593981781. The reversal of 73593981749 is 94718939537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52009083025 + 21584898724 = 228055^2 + 146918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73593981749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73593984749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36796990874 + 36796990875.

It is an arithmetic number, because the mean of its divisors is an integer number (36796990875).

Almost surely, 2^73593981749 is an apocalyptic number.

It is an amenable number.

73593981749 is a deficient number, since it is larger than the sum of its proper divisors (1).

73593981749 is an equidigital number, since it uses as much as digits as its factorization.

73593981749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51438240, while the sum is 65.

The spelling of 73593981749 in words is "seventy-three billion, five hundred ninety-three million, nine hundred eighty-one thousand, seven hundred forty-nine".