67397180441 has 2 divisors, whose sum is σ = 67397180442. Its totient is φ = 67397180440.

The previous prime is 67397180351. The next prime is 67397180449. The reversal of 67397180441 is 14408179376.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53141775625 + 14255404816 = 230525^2 + 119396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67397180441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67397180441.

It is not a weakly prime, because it can be changed into another prime (67397180449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33698590220 + 33698590221.

It is an arithmetic number, because the mean of its divisors is an integer number (33698590221).

Almost surely, 2^67397180441 is an apocalyptic number.

It is an amenable number.

67397180441 is a deficient number, since it is larger than the sum of its proper divisors (1).

67397180441 is an equidigital number, since it uses as much as digits as its factorization.

67397180441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 67397180441 in words is "sixty-seven billion, three hundred ninety-seven million, one hundred eighty thousand, four hundred forty-one".