1263611206050 has 144 divisors (see below), whose sum is σ = 3341481568992. Its totient is φ = 315935769600.

The previous prime is 1263611206037. The next prime is 1263611206217. The reversal of 1263611206050 is 506021163621.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5132265 + ... + 5372835.

It is an arithmetic number, because the mean of its divisors is an integer number (23204733118).

Almost surely, 2^{1263611206050} is an apocalyptic number.

1263611206050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1263611206050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670740784496).

1263611206050 is an abundant number, since it is smaller than the sum of its proper divisors (2077870362942).

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

1263611206050 is a wasteful number, since it uses less digits than its factorization.

1263611206050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240721 (or 240697 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 1263611206050 its reverse (506021163621), we get a palindrome (1769632369671).

The spelling of 1263611206050 in words is "one trillion, two hundred sixty-three billion, six hundred eleven million, two hundred six thousand, fifty".