1173400667889 has 16 divisors (see below), whose sum is σ = 1632778450944. Its totient is φ = 748154206800.

The previous prime is 1173400667861. The next prime is 1173400667909. The reversal of 1173400667889 is 9887660043711.

It is a de Polignac number, because none of the positive numbers 2^k-1173400667889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1173400667489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635977 + ... + 1658694.

It is an arithmetic number, because the mean of its divisors is an integer number (102048653184).

Almost surely, 2^{1173400667889} is an apocalyptic number.

It is an amenable number.

1173400667889 is a deficient number, since it is larger than the sum of its proper divisors (459377783055).

1173400667889 is a wasteful number, since it uses less digits than its factorization.

1173400667889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302108.

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 1173400667889 in words is "one trillion, one hundred seventy-three billion, four hundred million, six hundred sixty-seven thousand, eight hundred eighty-nine".