67374537473 has 2 divisors, whose sum is σ = 67374537474. Its totient is φ = 67374537472.

The previous prime is 67374537457. The next prime is 67374537493. The reversal of 67374537473 is 37473547376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55786660864 + 11587876609 = 236192^2 + 107647^2 .

It is a cyclic number.

It is not a de Polignac number, because 67374537473 - 2⁴ = 67374537457 is a prime.

It is not a weakly prime, because it can be changed into another prime (67374537413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33687268736 + 33687268737.

It is an arithmetic number, because the mean of its divisors is an integer number (33687268737).

Almost surely, 2^67374537473 is an apocalyptic number.

It is an amenable number.

67374537473 is a deficient number, since it is larger than the sum of its proper divisors (1).

67374537473 is an equidigital number, since it uses as much as digits as its factorization.

67374537473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31116960, while the sum is 56.

The spelling of 67374537473 in words is "sixty-seven billion, three hundred seventy-four million, five hundred thirty-seven thousand, four hundred seventy-three".