73954814501993 has 2 divisors, whose sum is σ = 73954814501994. Its totient is φ = 73954814501992.

The previous prime is 73954814501987. The next prime is 73954814502001. The reversal of 73954814501993 is 39910541845937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58572204949504 + 15382609552489 = 7653248^2 + 3922067^2 .

It is a cyclic number.

It is not a de Polignac number, because 73954814501993 - 2⁶ = 73954814501929 is a prime.

It is not a weakly prime, because it can be changed into another prime (73954814501963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36977407250996 + 36977407250997.

It is an arithmetic number, because the mean of its divisors is an integer number (36977407250997).

Almost surely, 2^{73954814501993} is an apocalyptic number.

It is an amenable number.

73954814501993 is a deficient number, since it is larger than the sum of its proper divisors (1).

73954814501993 is an equidigital number, since it uses as much as digits as its factorization.

73954814501993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 146966400, while the sum is 68.

The spelling of 73954814501993 in words is "seventy-three trillion, nine hundred fifty-four billion, eight hundred fourteen million, five hundred one thousand, nine hundred ninety-three".