154319317693 has 2 divisors, whose sum is σ = 154319317694. Its totient is φ = 154319317692.

The previous prime is 154319317687. The next prime is 154319317703. The reversal of 154319317693 is 396713913451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135348938404 + 18970379289 = 367898^2 + 137733^2 .

It is a cyclic number.

It is not a de Polignac number, because 154319317693 - 2⁵ = 154319317661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154319317693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154319317093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77159658846 + 77159658847.

It is an arithmetic number, because the mean of its divisors is an integer number (77159658847).

Almost surely, 2^154319317693 is an apocalyptic number.

It is an amenable number.

154319317693 is a deficient number, since it is larger than the sum of its proper divisors (1).

154319317693 is an equidigital number, since it uses as much as digits as its factorization.

154319317693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 52.

The spelling of 154319317693 in words is "one hundred fifty-four billion, three hundred nineteen million, three hundred seventeen thousand, six hundred ninety-three".