11357811756450 has 144 divisors (see below), whose sum is σ = 30934492393896. Its totient is φ = 2987291750400.

The previous prime is 11357811756443. The next prime is 11357811756457. The reversal of 11357811756450 is 5465711875311.

It is a happy number.

11357811756450 is a `hidden beast` number, since 1 + 1 + 3 + 5 + 78 + 1 + 1 + 7 + 564 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (11357811756443) and next prime (11357811756457).

It can be written as a sum of positive squares in 12 ways, for example, as 1170115994961 + 10187695761489 = 1081719^2 + 3191817^2 .

It is not an unprimeable number, because it can be changed into a prime (11357811756457) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12345420 + ... + 13233480.

Almost surely, 2^{11357811756450} is an apocalyptic number.

11357811756450 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 11357811756450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15467246196948).

11357811756450 is an abundant number, since it is smaller than the sum of its proper divisors (19576680637446).

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

11357811756450 is a wasteful number, since it uses less digits than its factorization.

11357811756450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888469 (or 888461 counting only the distinct ones).

The product of its (nonzero) digits is 3528000, while the sum is 54.

The spelling of 11357811756450 in words is "eleven trillion, three hundred fifty-seven billion, eight hundred eleven million, seven hundred fifty-six thousand, four hundred fifty".