73278424783 has 2 divisors, whose sum is σ = 73278424784. Its totient is φ = 73278424782.

The previous prime is 73278424777. The next prime is 73278424823. The reversal of 73278424783 is 38742487237.

It is a weak prime.

It is an emirp because it is prime and its reverse (38742487237) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73278424783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73278424183) 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, 36639212391 + 36639212392.

It is an arithmetic number, because the mean of its divisors is an integer number (36639212392).

Almost surely, 2^73278424783 is an apocalyptic number.

73278424783 is a deficient number, since it is larger than the sum of its proper divisors (1).

73278424783 is an equidigital number, since it uses as much as digits as its factorization.

73278424783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12644352, while the sum is 55.

The spelling of 73278424783 in words is "seventy-three billion, two hundred seventy-eight million, four hundred twenty-four thousand, seven hundred eighty-three".