1111542644542 has 8 divisors (see below), whose sum is σ = 1818887963832. Its totient is φ = 505246656600.

The previous prime is 1111542644521. The next prime is 1111542644557. The reversal of 1111542644542 is 2454462451111.

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

It is a junction number, because it is equal to n+sod(n) for n = 1111542644495 and 1111542644504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25262332809 + ... + 25262332852.

It is an arithmetic number, because the mean of its divisors is an integer number (227360995479).

Almost surely, 2^{1111542644542} is an apocalyptic number.

1111542644542 is a deficient number, since it is larger than the sum of its proper divisors (707345319290).

1111542644542 is a wasteful number, since it uses less digits than its factorization.

1111542644542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50524665674.

The product of its digits is 153600, while the sum is 40.

The spelling of 1111542644542 in words is "one trillion, one hundred eleven billion, five hundred forty-two million, six hundred forty-four thousand, five hundred forty-two".