1178492225961 has 8 divisors (see below), whose sum is σ = 1586880621504. Its totient is φ = 777882657200.

The previous prime is 1178492225957. The next prime is 1178492226001. The reversal of 1178492225961 is 1695222948711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1178492225961 - 2² = 1178492225957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1178492225941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1944706341 + ... + 1944706946.

It is an arithmetic number, because the mean of its divisors is an integer number (198360077688).

Almost surely, 2^{1178492225961} is an apocalyptic number.

It is an amenable number.

1178492225961 is a deficient number, since it is larger than the sum of its proper divisors (408388395543).

1178492225961 is a wasteful number, since it uses less digits than its factorization.

1178492225961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889413391.

The product of its digits is 4354560, while the sum is 57.

The spelling of 1178492225961 in words is "one trillion, one hundred seventy-eight billion, four hundred ninety-two million, two hundred twenty-five thousand, nine hundred sixty-one".