1126543615542 has 24 divisors (see below), whose sum is σ = 2441156098680. Its totient is φ = 375466600320.

The previous prime is 1126543615513. The next prime is 1126543615543. The reversal of 1126543615542 is 2455163456211.

1126543615542 is a `hidden beast` number, since 1 + 1 + 2 + 6 + 5 + 43 + 61 + 5 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126543615543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3849792 + ... + 4132067.

It is an arithmetic number, because the mean of its divisors is an integer number (101714837445).

Almost surely, 2^{1126543615542} is an apocalyptic number.

1126543615542 is an abundant number, since it is smaller than the sum of its proper divisors (1314612483138).

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

1126543615542 is a wasteful number, since it uses less digits than its factorization.

1126543615542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989708 (or 7989705 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 1126543615542 in words is "one trillion, one hundred twenty-six billion, five hundred forty-three million, six hundred fifteen thousand, five hundred forty-two".