11554431542 has 4 divisors (see below), whose sum is σ = 17331647316. Its totient is φ = 5777215770.

The previous prime is 11554431527. The next prime is 11554431607. The reversal of 11554431542 is 24513445511.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2888607884 + ... + 2888607887.

It is an arithmetic number, because the mean of its divisors is an integer number (4332911829).

Almost surely, 2^11554431542 is an apocalyptic number.

11554431542 is a deficient number, since it is larger than the sum of its proper divisors (5777215774).

11554431542 is an equidigital number, since it uses as much as digits as its factorization.

11554431542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5777215773.

The product of its digits is 48000, while the sum is 35.

The spelling of 11554431542 in words is "eleven billion, five hundred fifty-four million, four hundred thirty-one thousand, five hundred forty-two".