73917961841 has 2 divisors, whose sum is σ = 73917961842. Its totient is φ = 73917961840.

The previous prime is 73917961823. The next prime is 73917961847. The reversal of 73917961841 is 14816971937.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56455660816 + 17462301025 = 237604^2 + 132145^2 .

It is a cyclic number.

It is not a de Polignac number, because 73917961841 - 2²² = 73913767537 is a prime.

It is a super-3 number, since 3×73917961841³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (73917961847) 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, 36958980920 + 36958980921.

It is an arithmetic number, because the mean of its divisors is an integer number (36958980921).

Almost surely, 2^73917961841 is an apocalyptic number.

It is an amenable number.

73917961841 is a deficient number, since it is larger than the sum of its proper divisors (1).

73917961841 is an equidigital number, since it uses as much as digits as its factorization.

73917961841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 56.

The spelling of 73917961841 in words is "seventy-three billion, nine hundred seventeen million, nine hundred sixty-one thousand, eight hundred forty-one".