67748850461 has 2 divisors, whose sum is σ = 67748850462. Its totient is φ = 67748850460.

The previous prime is 67748850457. The next prime is 67748850497. The reversal of 67748850461 is 16405884776.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67555807225 + 193043236 = 259915^2 + 13894^2 .

It is a cyclic number.

It is not a de Polignac number, because 67748850461 - 2² = 67748850457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67748850397 and 67748850406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67748850451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33874425230 + 33874425231.

It is an arithmetic number, because the mean of its divisors is an integer number (33874425231).

Almost surely, 2^67748850461 is an apocalyptic number.

It is an amenable number.

67748850461 is a deficient number, since it is larger than the sum of its proper divisors (1).

67748850461 is an equidigital number, since it uses as much as digits as its factorization.

67748850461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 67748850461 in words is "sixty-seven billion, seven hundred forty-eight million, eight hundred fifty thousand, four hundred sixty-one".