73783475461 has 2 divisors, whose sum is σ = 73783475462. Its totient is φ = 73783475460.

The previous prime is 73783475459. The next prime is 73783475489. The reversal of 73783475461 is 16457438737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57010635361 + 16772840100 = 238769^2 + 129510^2 .

It is a cyclic number.

It is not a de Polignac number, because 73783475461 - 2¹ = 73783475459 is a prime.

It is a super-2 number, since 2×73783475461² (a number of 23 digits) contains 22 as substring.

Together with 73783475459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73783475261) 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, 36891737730 + 36891737731.

It is an arithmetic number, because the mean of its divisors is an integer number (36891737731).

Almost surely, 2^73783475461 is an apocalyptic number.

It is an amenable number.

73783475461 is a deficient number, since it is larger than the sum of its proper divisors (1).

73783475461 is an equidigital number, since it uses as much as digits as its factorization.

73783475461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 55.

The spelling of 73783475461 in words is "seventy-three billion, seven hundred eighty-three million, four hundred seventy-five thousand, four hundred sixty-one".