73671920002001 has 2 divisors, whose sum is σ = 73671920002002. Its totient is φ = 73671920002000.

The previous prime is 73671920001847. The next prime is 73671920002013. The reversal of 73671920002001 is 10020002917637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60680220642001 + 12991699360000 = 7789751^2 + 3604400^2 .

It is a cyclic number.

It is not a de Polignac number, because 73671920002001 - 2¹⁴ = 73671919985617 is a prime.

It is not a weakly prime, because it can be changed into another prime (73671920002801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36835960001000 + 36835960001001.

It is an arithmetic number, because the mean of its divisors is an integer number (36835960001001).

Almost surely, 2^{73671920002001} is an apocalyptic number.

It is an amenable number.

73671920002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

73671920002001 is an equidigital number, since it uses as much as digits as its factorization.

73671920002001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

Adding to 73671920002001 its reverse (10020002917637), we get a palindrome (83691922919638).

The spelling of 73671920002001 in words is "seventy-three trillion, six hundred seventy-one billion, nine hundred twenty million, two thousand, one".