73534928777 has 2 divisors, whose sum is σ = 73534928778. Its totient is φ = 73534928776.

The previous prime is 73534928773. The next prime is 73534928783. The reversal of 73534928777 is 77782943537.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67356339961 + 6178588816 = 259531^2 + 78604^2 .

It is a cyclic number.

It is not a de Polignac number, because 73534928777 - 2² = 73534928773 is a prime.

It is not a weakly prime, because it can be changed into another prime (73534928773) 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, 36767464388 + 36767464389.

It is an arithmetic number, because the mean of its divisors is an integer number (36767464389).

Almost surely, 2^73534928777 is an apocalyptic number.

It is an amenable number.

73534928777 is a deficient number, since it is larger than the sum of its proper divisors (1).

73534928777 is an equidigital number, since it uses as much as digits as its factorization.

73534928777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62233920, while the sum is 62.

The spelling of 73534928777 in words is "seventy-three billion, five hundred thirty-four million, nine hundred twenty-eight thousand, seven hundred seventy-seven".