11542443154 has 16 divisors (see below), whose sum is σ = 18983517696. Its totient is φ = 5219930800.

The previous prime is 11542443137. The next prime is 11542443167. The reversal of 11542443154 is 45134424511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1327282 + ... + 1335949.

It is an arithmetic number, because the mean of its divisors is an integer number (1186469856).

Almost surely, 2^11542443154 is an apocalyptic number.

11542443154 is a deficient number, since it is larger than the sum of its proper divisors (7441074542).

11542443154 is a wasteful number, since it uses less digits than its factorization.

11542443154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663441.

The product of its digits is 38400, while the sum is 34.

Adding to 11542443154 its reverse (45134424511), we get a palindrome (56676867665).

The spelling of 11542443154 in words is "eleven billion, five hundred forty-two million, four hundred forty-three thousand, one hundred fifty-four".