11742784740 has 36 divisors (see below), whose sum is σ = 35619780924. Its totient is φ = 3131409216.

The previous prime is 11742784723. The next prime is 11742784741. The reversal of 11742784740 is 4748724711.

11742784740 is a `hidden beast` number, since 1 + 174 + 2 + 7 + 8 + 474 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8631153216 + 3111631524 = 92904^2 + 55782^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (11742784741) 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, 32618667 + ... + 32619026.

It is an arithmetic number, because the mean of its divisors is an integer number (989438359).

Almost surely, 2^11742784740 is an apocalyptic number.

11742784740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11742784740 is an abundant number, since it is smaller than the sum of its proper divisors (23876996184).

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

11742784740 is a wasteful number, since it uses less digits than its factorization.

11742784740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65237708 (or 65237703 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The spelling of 11742784740 in words is "eleven billion, seven hundred forty-two million, seven hundred eighty-four thousand, seven hundred forty".