74736691043969 has 2 divisors, whose sum is σ = 74736691043970. Its totient is φ = 74736691043968.

The previous prime is 74736691043821. The next prime is 74736691043983. The reversal of 74736691043969 is 96934019663747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65910366990400 + 8826324053569 = 8118520^2 + 2970913^2 .

It is a cyclic number.

It is not a de Polignac number, because 74736691043969 - 2²⁴ = 74736674266753 is a prime.

It is a super-2 number, since 2×74736691043969² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74736691043896 and 74736691043905.

It is not a weakly prime, because it can be changed into another prime (74736691043669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37368345521984 + 37368345521985.

It is an arithmetic number, because the mean of its divisors is an integer number (37368345521985).

Almost surely, 2^{74736691043969} is an apocalyptic number.

It is an amenable number.

74736691043969 is a deficient number, since it is larger than the sum of its proper divisors (1).

74736691043969 is an equidigital number, since it uses as much as digits as its factorization.

74736691043969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111065984, while the sum is 74.

The spelling of 74736691043969 in words is "seventy-four trillion, seven hundred thirty-six billion, six hundred ninety-one million, forty-three thousand, nine hundred sixty-nine".