67869561433 has 2 divisors, whose sum is σ = 67869561434. Its totient is φ = 67869561432.

The previous prime is 67869561371. The next prime is 67869561449. The reversal of 67869561433 is 33416596876.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57337260304 + 10532301129 = 239452^2 + 102627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67869561433 is a prime.

It is a super-2 number, since 2×67869561433² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67869561733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33934780716 + 33934780717.

It is an arithmetic number, because the mean of its divisors is an integer number (33934780717).

Almost surely, 2^67869561433 is an apocalyptic number.

It is an amenable number.

67869561433 is a deficient number, since it is larger than the sum of its proper divisors (1).

67869561433 is an equidigital number, since it uses as much as digits as its factorization.

67869561433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 58.

The spelling of 67869561433 in words is "sixty-seven billion, eight hundred sixty-nine million, five hundred sixty-one thousand, four hundred thirty-three".