11774635620 has 96 divisors (see below), whose sum is σ = 36296346240. Its totient is φ = 2828252160.

The previous prime is 11774635601. The next prime is 11774635627. The reversal of 11774635620 is 2653647711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11774635627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9897 + ... + 153776.

It is an arithmetic number, because the mean of its divisors is an integer number (378086940).

Almost surely, 2^11774635620 is an apocalyptic number.

11774635620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11774635620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18148173120).

11774635620 is an abundant number, since it is smaller than the sum of its proper divisors (24521710620).

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

11774635620 is a wasteful number, since it uses less digits than its factorization.

11774635620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163805 (or 163803 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 11774635620 in words is "eleven billion, seven hundred seventy-four million, six hundred thirty-five thousand, six hundred twenty".