67494961901 has 2 divisors, whose sum is σ = 67494961902. Its totient is φ = 67494961900.

The previous prime is 67494961879. The next prime is 67494961907. The reversal of 67494961901 is 10916949476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46980129001 + 20514832900 = 216749^2 + 143230^2 .

It is a cyclic number.

It is not a de Polignac number, because 67494961901 - 2⁶ = 67494961837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67494961907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33747480950 + 33747480951.

It is an arithmetic number, because the mean of its divisors is an integer number (33747480951).

Almost surely, 2^67494961901 is an apocalyptic number.

It is an amenable number.

67494961901 is a deficient number, since it is larger than the sum of its proper divisors (1).

67494961901 is an equidigital number, since it uses as much as digits as its factorization.

67494961901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 56.

The spelling of 67494961901 in words is "sixty-seven billion, four hundred ninety-four million, nine hundred sixty-one thousand, nine hundred one".