1154398233643 has 4 divisors (see below), whose sum is σ = 1155973129648. Its totient is φ = 1152823337640.

The previous prime is 1154398233619. The next prime is 1154398233683. The reversal of 1154398233643 is 3463328934511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1154398233643 - 2¹³ = 1154398225451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1154398233683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787446903 + ... + 787448368.

It is an arithmetic number, because the mean of its divisors is an integer number (288993282412).

Almost surely, 2^{1154398233643} is an apocalyptic number.

1154398233643 is a deficient number, since it is larger than the sum of its proper divisors (1574896005).

1154398233643 is an equidigital number, since it uses as much as digits as its factorization.

1154398233643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574896004.

The product of its digits is 5598720, while the sum is 52.

The spelling of 1154398233643 in words is "one trillion, one hundred fifty-four billion, three hundred ninety-eight million, two hundred thirty-three thousand, six hundred forty-three".