1126421533636 has 36 divisors (see below), whose sum is σ = 2293344418428. Its totient is φ = 482694820608.

The previous prime is 1126421533603. The next prime is 1126421533637. The reversal of 1126421533636 is 6363351246211.

It can be written as a sum of positive squares in 2 ways, for example, as 903773448900 + 222648084736 = 950670^2 + 471856^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1126421533592 and 1126421533601.

It is not an unprimeable number, because it can be changed into a prime (1126421533637) 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, 1336656 + ... + 2009848.

It is an arithmetic number, because the mean of its divisors is an integer number (63704011623).

Almost surely, 2^{1126421533636} is an apocalyptic number.

It is an amenable number.

1126421533636 is an abundant number, since it is smaller than the sum of its proper divisors (1166922884792).

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

1126421533636 is a wasteful number, since it uses less digits than its factorization.

1126421533636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681748 (or 681739 counting only the distinct ones).

The product of its digits is 466560, while the sum is 43.

Adding to 1126421533636 its reverse (6363351246211), we get a palindrome (7489772779847).

The spelling of 1126421533636 in words is "one trillion, one hundred twenty-six billion, four hundred twenty-one million, five hundred thirty-three thousand, six hundred thirty-six".