140673566777 has 2 divisors, whose sum is σ = 140673566778. Its totient is φ = 140673566776.

The previous prime is 140673566749. The next prime is 140673566791. The reversal of 140673566777 is 777665376041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140622000016 + 51566761 = 374996^2 + 7181^2 .

It is an emirp because it is prime and its reverse (777665376041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140673566777 - 2¹⁸ = 140673304633 is a prime.

It is not a weakly prime, because it can be changed into another prime (140673566177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70336783388 + 70336783389.

It is an arithmetic number, because the mean of its divisors is an integer number (70336783389).

Almost surely, 2^140673566777 is an apocalyptic number.

It is an amenable number.

140673566777 is a deficient number, since it is larger than the sum of its proper divisors (1).

140673566777 is an equidigital number, since it uses as much as digits as its factorization.

140673566777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31116960, while the sum is 59.

The spelling of 140673566777 in words is "one hundred forty billion, six hundred seventy-three million, five hundred sixty-six thousand, seven hundred seventy-seven".