73535669969 has 2 divisors, whose sum is σ = 73535669970. Its totient is φ = 73535669968.

The previous prime is 73535669959. The next prime is 73535670029. The reversal of 73535669969 is 96996653537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45566452369 + 27969217600 = 213463^2 + 167240^2 .

It is a cyclic number.

It is not a de Polignac number, because 73535669969 - 2¹⁶ = 73535604433 is a prime.

It is a super-2 number, since 2×73535669969² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73535669899 and 73535669908.

It is not a weakly prime, because it can be changed into another prime (73535669939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36767834984 + 36767834985.

It is an arithmetic number, because the mean of its divisors is an integer number (36767834985).

Almost surely, 2^73535669969 is an apocalyptic number.

It is an amenable number.

73535669969 is a deficient number, since it is larger than the sum of its proper divisors (1).

73535669969 is an equidigital number, since it uses as much as digits as its factorization.

73535669969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248005800, while the sum is 68.

The spelling of 73535669969 in words is "seventy-three billion, five hundred thirty-five million, six hundred sixty-nine thousand, nine hundred sixty-nine".