1172638383867 has 12 divisors (see below), whose sum is σ = 1696495335184. Its totient is φ = 780519998160.

The previous prime is 1172638383859. The next prime is 1172638383881. The reversal of 1172638383867 is 7683838362711.

1172638383867 is a `hidden beast` number, since 1 + 172 + 6 + 3 + 8 + 383 + 86 + 7 = 666.

It is not a de Polignac number, because 1172638383867 - 2³ = 1172638383859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1172638383467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103237708 + ... + 103249065.

Almost surely, 2^{1172638383867} is an apocalyptic number.

1172638383867 is a deficient number, since it is larger than the sum of its proper divisors (523856951317).

1172638383867 is a wasteful number, since it uses less digits than its factorization.

1172638383867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206487410 (or 206487407 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 1172638383867 in words is "one trillion, one hundred seventy-two billion, six hundred thirty-eight million, three hundred eighty-three thousand, eight hundred sixty-seven".