73949705201663 has 2 divisors, whose sum is σ = 73949705201664. Its totient is φ = 73949705201662.

The previous prime is 73949705201651. The next prime is 73949705201719. The reversal of 73949705201663 is 36610250794937.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73949705201663 - 2⁴⁶ = 3580961023999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73949705201596 and 73949705201605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73949705201063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36974852600831 + 36974852600832.

It is an arithmetic number, because the mean of its divisors is an integer number (36974852600832).

Almost surely, 2^{73949705201663} is an apocalyptic number.

73949705201663 is a deficient number, since it is larger than the sum of its proper divisors (1).

73949705201663 is an equidigital number, since it uses as much as digits as its factorization.

73949705201663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51438240, while the sum is 62.

The spelling of 73949705201663 in words is "seventy-three trillion, nine hundred forty-nine billion, seven hundred five million, two hundred one thousand, six hundred sixty-three".