67275818989 has 12 divisors (see below), whose sum is σ = 71836358164. Its totient is φ = 62990290944.

The previous prime is 67275818971. The next prime is 67275819089. The reversal of 67275818989 is 98981857276.

It can be written as a sum of positive squares in 6 ways, for example, as 12090761764 + 55185057225 = 109958^2 + 234915^2 .

It is not a de Polignac number, because 67275818989 - 2²⁹ = 66738948077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67275810989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 547302 + ... + 658855.

Almost surely, 2^67275818989 is an apocalyptic number.

It is an amenable number.

67275818989 is a deficient number, since it is larger than the sum of its proper divisors (4560539175).

67275818989 is a wasteful number, since it uses less digits than its factorization.

67275818989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206384 (or 1206367 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 70.

The spelling of 67275818989 in words is "sixty-seven billion, two hundred seventy-five million, eight hundred eighteen thousand, nine hundred eighty-nine".