1154895046409 has 8 divisors (see below), whose sum is σ = 1309192765440. Its totient is φ = 1009948704336.

The previous prime is 1154895046397. The next prime is 1154895046411. The reversal of 1154895046409 is 9046405984511.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-1154895046409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154895046469) 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, 2337843977 + ... + 2337844470.

It is an arithmetic number, because the mean of its divisors is an integer number (163649095680).

Almost surely, 2^{1154895046409} is an apocalyptic number.

1154895046409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1154895046409 is a deficient number, since it is larger than the sum of its proper divisors (154297719031).

1154895046409 is a wasteful number, since it uses less digits than its factorization.

1154895046409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675688479.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 1154895046409 in words is "one trillion, one hundred fifty-four billion, eight hundred ninety-five million, forty-six thousand, four hundred nine".