67773608361 has 64 divisors (see below), whose sum is σ = 111637504000. Its totient is φ = 40459849920.

The previous prime is 67773608339. The next prime is 67773608387. The reversal of 67773608361 is 16380637776.

It is a happy number.

It is not a de Polignac number, because 67773608361 - 2³¹ = 65626124713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67773608298 and 67773608307.

It is not an unprimeable number, because it can be changed into a prime (67773608561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 634275 + ... + 733383.

It is an arithmetic number, because the mean of its divisors is an integer number (1744336000).

Almost surely, 2^67773608361 is an apocalyptic number.

It is an amenable number.

67773608361 is a deficient number, since it is larger than the sum of its proper divisors (43863895639).

67773608361 is a wasteful number, since it uses less digits than its factorization.

67773608361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99211 (or 99205 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 67773608361 in words is "sixty-seven billion, seven hundred seventy-three million, six hundred eight thousand, three hundred sixty-one".