67007770077338 has 4 divisors (see below), whose sum is σ = 100511655116010. Its totient is φ = 33503885038668.

The previous prime is 67007770077317. The next prime is 67007770077397. The reversal of 67007770077338 is 83377007770076.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 67007599957489 + 170119849 = 8185817^2 + 13043^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16751942519333 + ... + 16751942519336.

Almost surely, 2^{67007770077338} is an apocalyptic number.

67007770077338 is a deficient number, since it is larger than the sum of its proper divisors (33503885038672).

67007770077338 is a wasteful number, since it uses less digits than its factorization.

67007770077338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33503885038671.

The product of its (nonzero) digits is 50824368, while the sum is 62.

The spelling of 67007770077338 in words is "sixty-seven trillion, seven billion, seven hundred seventy million, seventy-seven thousand, three hundred thirty-eight".