1540554424442 has 16 divisors (see below), whose sum is σ = 2589039869472. Its totient is φ = 681326280720.

The previous prime is 1540554424441. The next prime is 1540554424481. The reversal of 1540554424442 is 2444244550451.

It is a super-2 number, since 2×1540554424442² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1540554424393 and 1540554424402.

It is not an unprimeable number, because it can be changed into a prime (1540554424441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946285688 + ... + 946287315.

It is an arithmetic number, because the mean of its divisors is an integer number (161814991842).

Almost surely, 2^{1540554424442} is an apocalyptic number.

1540554424442 is a deficient number, since it is larger than the sum of its proper divisors (1048485445030).

1540554424442 is a wasteful number, since it uses less digits than its factorization.

1540554424442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892573053.

The product of its (nonzero) digits is 2048000, while the sum is 44.

Adding to 1540554424442 its reverse (2444244550451), we get a palindrome (3984798974893).

The spelling of 1540554424442 in words is "one trillion, five hundred forty billion, five hundred fifty-four million, four hundred twenty-four thousand, four hundred forty-two".