67770706744 has 16 divisors (see below), whose sum is σ = 136844696520. Its totient is φ = 31278787680.

The previous prime is 67770706693. The next prime is 67770706753. The reversal of 67770706744 is 44760707776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325820602 + ... + 325820809.

Almost surely, 2^67770706744 is an apocalyptic number.

It is an amenable number.

67770706744 is an abundant number, since it is smaller than the sum of its proper divisors (69073989776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67770706744 is a wasteful number, since it uses less digits than its factorization.

67770706744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651641430 (or 651641426 counting only the distinct ones).

The product of its (nonzero) digits is 9680832, while the sum is 55.

The spelling of 67770706744 in words is "sixty-seven billion, seven hundred seventy million, seven hundred six thousand, seven hundred forty-four".