11540543442 has 16 divisors (see below), whose sum is σ = 23116440960. Its totient is φ = 3840955472.

The previous prime is 11540543431. The next prime is 11540543453. The reversal of 11540543442 is 24434504511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11540543431) and next prime (11540543453).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1468842 + ... + 1476677.

It is an arithmetic number, because the mean of its divisors is an integer number (1444777560).

Almost surely, 2^11540543442 is an apocalyptic number.

11540543442 is an abundant number, since it is smaller than the sum of its proper divisors (11575897518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11540543442 is a wasteful number, since it uses less digits than its factorization.

11540543442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946177.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 11540543442 in words is "eleven billion, five hundred forty million, five hundred forty-three thousand, four hundred forty-two".