67953541049 has 2 divisors, whose sum is σ = 67953541050. Its totient is φ = 67953541048.

The previous prime is 67953541031. The next prime is 67953541093. The reversal of 67953541049 is 94014535976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48062669824 + 19890871225 = 219232^2 + 141035^2 .

It is a cyclic number.

It is not a de Polignac number, because 67953541049 - 2²⁰ = 67952492473 is a prime.

It is not a weakly prime, because it can be changed into another prime (67953541099) 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, 33976770524 + 33976770525.

It is an arithmetic number, because the mean of its divisors is an integer number (33976770525).

Almost surely, 2^67953541049 is an apocalyptic number.

It is an amenable number.

67953541049 is a deficient number, since it is larger than the sum of its proper divisors (1).

67953541049 is an equidigital number, since it uses as much as digits as its factorization.

67953541049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 67953541049 in words is "sixty-seven billion, nine hundred fifty-three million, five hundred forty-one thousand, forty-nine".