67442107624461 has 8 divisors (see below), whose sum is σ = 99914233517760. Its totient is φ = 44961405082956.

The previous prime is 67442107624457. The next prime is 67442107624469. The reversal of 67442107624461 is 16442670124476.

It is a happy number.

67442107624461 is a `hidden beast` number, since 6 + 7 + 4 + 4 + 2 + 1 + 0 + 7 + 624 + 4 + 6 + 1 = 666.

It is not a de Polignac number, because 67442107624461 - 2² = 67442107624457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67442107624398 and 67442107624407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67442107624469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1248927918945 + ... + 1248927918998.

It is an arithmetic number, because the mean of its divisors is an integer number (12489279189720).

Almost surely, 2^{67442107624461} is an apocalyptic number.

It is an amenable number.

67442107624461 is a deficient number, since it is larger than the sum of its proper divisors (32472125893299).

67442107624461 is a wasteful number, since it uses less digits than its factorization.

67442107624461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497855837952 (or 2497855837946 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 54.

The spelling of 67442107624461 in words is "sixty-seven trillion, four hundred forty-two billion, one hundred seven million, six hundred twenty-four thousand, four hundred sixty-one".