11747347920 has 480 divisors, whose sum is σ = 50837579520. Its totient is φ = 2440627200.

The previous prime is 11747347907. The next prime is 11747347999. The reversal of 11747347920 is 2974374711.

11747347920 is a `hidden beast` number, since 1 + 174 + 7 + 3 + 479 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1826310 + ... + 1832730.

It is an arithmetic number, because the mean of its divisors is an integer number (105911624).

Almost surely, 2^11747347920 is an apocalyptic number.

11747347920 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 11747347920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25418789760).

11747347920 is an abundant number, since it is smaller than the sum of its proper divisors (39090231600).

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

11747347920 is a wasteful number, since it uses less digits than its factorization.

11747347920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472 (or 6449 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The spelling of 11747347920 in words is "eleven billion, seven hundred forty-seven million, three hundred forty-seven thousand, nine hundred twenty".