67448264533 has 12 divisors (see below), whose sum is σ = 73079043588. Its totient is φ = 62222983680.

The previous prime is 67448264509. The next prime is 67448264549. The reversal of 67448264533 is 33546284476.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4656424644 + 62791839889 = 68238^2 + 250583^2 .

It is not a de Polignac number, because 67448264533 - 2¹⁷ = 67448133461 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 (67448864533) 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, 169203 + ... + 404383.

It is an arithmetic number, because the mean of its divisors is an integer number (6089920299).

Almost surely, 2^67448264533 is an apocalyptic number.

It is an amenable number.

67448264533 is a deficient number, since it is larger than the sum of its proper divisors (5630779055).

67448264533 is a wasteful number, since it uses less digits than its factorization.

67448264533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236904 (or 236891 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 52.

The spelling of 67448264533 in words is "sixty-seven billion, four hundred forty-eight million, two hundred sixty-four thousand, five hundred thirty-three".